music21.instrument

This module represents instruments through objects that contain general information such as Metadata for instrument names, classifications, transpositions and default MIDI program numbers. It also contains information specific to each instrument or instrument family, such as string pitches, etc. Information about instrumental ensembles is also included here though it may later be separated out into its own ensemble.py module.

Instrument

class music21.instrument.Instrument(instrumentName=None)

Base class for all musical instruments. Designed for subclassing, though usually a more specific instrument class (such as StringInstrument) would be better to subclass.

Some defined attributes for instruments include:

  • partId

  • partName

  • partAbbreviation

  • instrumentId

  • instrumentName

  • instrumentAbbreviation

  • midiProgram (0-indexed)

  • midiChannel (0-indexed)

  • lowestNote (a note object or a string for _written_ pitch)

  • highestNote (a note object or a string for _written_ pitch)

  • transposition (an interval object)

  • inGMPercMap (bool – if it uses the GM percussion map)

  • soundfontFn (filepath to a sound font, optional)

Instrument bases

Instrument read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Instrument read/write properties

Read/write properties inherited from Music21Object:

Instrument methods

Instrument.autoAssignMidiChannel(usedChannels=[])

Assign an unused midi channel given a list of used channels.

assigns the number to self.midiChannel and returns it as an int.

Note that midi channel 10 (9 in music21) is special, and thus is skipped.

Currently only 16 channels are used.

Note that the reused “usedChannels=[]” in the signature is NOT a mistake, but necessary for the case where there needs to be a global list.

>>> used = [0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 11]
>>> i = instrument.Violin()
>>> i.autoAssignMidiChannel(used)
12
>>> i.midiChannel
12

Unpitched percussion will be set to 9, so long as it’s not in the filter list:

>>> used = [0]
>>> i = instrument.Maracas()
>>> i.autoAssignMidiChannel(used)
9
>>> i.midiChannel
9

>>> used = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
>>> i = instrument.Woodblock()
>>> i.autoAssignMidiChannel(used)
11
>>> i.midiChannel
11
Instrument.bestName()

Find a viable name, looking first at instrument, then part, then abbreviations.

Instrument.instrumentIdRandomize()

Force a unique id by using an MD5

Instrument.partIdRandomize()

Force a unique id by using an MD5

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Instrument instance variables

Instance variables inherited from Music21Object:

Accordion

class music21.instrument.Accordion

Accordion bases

Accordion read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Accordion read/write properties

Read/write properties inherited from Music21Object:

Accordion methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Accordion instance variables

Instance variables inherited from Music21Object:

AcousticBass

class music21.instrument.AcousticBass

AcousticBass bases

AcousticBass read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

AcousticBass read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

AcousticBass methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

AcousticBass instance variables

Instance variables inherited from Music21Object:

AcousticGuitar

class music21.instrument.AcousticGuitar

AcousticGuitar bases

AcousticGuitar read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

AcousticGuitar read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

AcousticGuitar methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

AcousticGuitar instance variables

Instance variables inherited from Music21Object:

Agogo

class music21.instrument.Agogo

Agogo bases

Agogo read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Agogo read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Agogo methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Agogo instance variables

Instance variables inherited from Music21Object:

Alto

class music21.instrument.Alto

Alto bases

Alto read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Alto read/write properties

Read/write properties inherited from Music21Object:

Alto methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Alto instance variables

Instance variables inherited from Music21Object:

AltoSaxophone

class music21.instrument.AltoSaxophone

AltoSaxophone bases

AltoSaxophone read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

AltoSaxophone read/write properties

Read/write properties inherited from Music21Object:

AltoSaxophone methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

AltoSaxophone instance variables

Instance variables inherited from Music21Object:

Bagpipes

class music21.instrument.Bagpipes

Bagpipes bases

Bagpipes read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Bagpipes read/write properties

Read/write properties inherited from Music21Object:

Bagpipes methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Bagpipes instance variables

Instance variables inherited from Music21Object:

Banjo

class music21.instrument.Banjo

Banjo bases

Banjo read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Banjo read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Banjo methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Banjo instance variables

Instance variables inherited from Music21Object:

Baritone

class music21.instrument.Baritone

Baritone bases

Baritone read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Baritone read/write properties

Read/write properties inherited from Music21Object:

Baritone methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Baritone instance variables

Instance variables inherited from Music21Object:

BaritoneSaxophone

class music21.instrument.BaritoneSaxophone

BaritoneSaxophone bases

BaritoneSaxophone read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

BaritoneSaxophone read/write properties

Read/write properties inherited from Music21Object:

BaritoneSaxophone methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

BaritoneSaxophone instance variables

Instance variables inherited from Music21Object:

Bass

class music21.instrument.Bass

Bass bases

Bass read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Bass read/write properties

Read/write properties inherited from Music21Object:

Bass methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Bass instance variables

Instance variables inherited from Music21Object:

BassClarinet

class music21.instrument.BassClarinet
>>> bcl = instrument.BassClarinet()
>>> bcl.instrumentName
'Bass clarinet'
>>> bcl.midiProgram
71
>>> 'WoodwindInstrument' in bcl.classes
True

BassClarinet bases

BassClarinet read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

BassClarinet read/write properties

Read/write properties inherited from Music21Object:

BassClarinet methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

BassClarinet instance variables

Instance variables inherited from Music21Object:

BassDrum

class music21.instrument.BassDrum

BassDrum bases

BassDrum read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

BassDrum read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

BassDrum methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

BassDrum instance variables

Instance variables inherited from Music21Object:

BassTrombone

class music21.instrument.BassTrombone

BassTrombone bases

BassTrombone read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

BassTrombone read/write properties

Read/write properties inherited from Music21Object:

BassTrombone methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

BassTrombone instance variables

Instance variables inherited from Music21Object:

Bassoon

class music21.instrument.Bassoon

Bassoon bases

Bassoon read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Bassoon read/write properties

Read/write properties inherited from Music21Object:

Bassoon methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Bassoon instance variables

Instance variables inherited from Music21Object:

BongoDrums

class music21.instrument.BongoDrums

BongoDrums bases

BongoDrums read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

BongoDrums read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

BongoDrums methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

BongoDrums instance variables

Instance variables inherited from Music21Object:

BrassInstrument

class music21.instrument.BrassInstrument

BrassInstrument bases

BrassInstrument read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

BrassInstrument read/write properties

Read/write properties inherited from Music21Object:

BrassInstrument methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

BrassInstrument instance variables

Instance variables inherited from Music21Object:

Castanets

class music21.instrument.Castanets

Castanets bases

Castanets read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Castanets read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Castanets methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Castanets instance variables

Instance variables inherited from Music21Object:

Celesta

class music21.instrument.Celesta

Celesta bases

Celesta read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Celesta read/write properties

Read/write properties inherited from Music21Object:

Celesta methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Celesta instance variables

Instance variables inherited from Music21Object:

Choir

class music21.instrument.Choir

Choir bases

Choir read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Choir read/write properties

Read/write properties inherited from Music21Object:

Choir methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Choir instance variables

Instance variables inherited from Music21Object:

ChurchBells

class music21.instrument.ChurchBells

ChurchBells bases

ChurchBells read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

ChurchBells read/write properties

Read/write properties inherited from Music21Object:

ChurchBells methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

ChurchBells instance variables

Instance variables inherited from Music21Object:

Clarinet

class music21.instrument.Clarinet

Clarinet bases

Clarinet read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Clarinet read/write properties

Read/write properties inherited from Music21Object:

Clarinet methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Clarinet instance variables

Instance variables inherited from Music21Object:

Clavichord

class music21.instrument.Clavichord

Clavichord bases

Clavichord read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Clavichord read/write properties

Read/write properties inherited from Music21Object:

Clavichord methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Clavichord instance variables

Instance variables inherited from Music21Object:

Conductor

class music21.instrument.Conductor

Presently used only for tracking the MIDI track containing tempo, key signature, and related metadata.

Conductor bases

Conductor read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Conductor read/write properties

Read/write properties inherited from Music21Object:

Conductor methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Conductor instance variables

Instance variables inherited from Music21Object:

CongaDrum

class music21.instrument.CongaDrum

CongaDrum bases

CongaDrum read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

CongaDrum read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

CongaDrum methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

CongaDrum instance variables

Instance variables inherited from Music21Object:

Contrabass

class music21.instrument.Contrabass

For the Contrabass (or double bass), the stringPitches attribute refers to the sounding pitches of each string; whereas the lowestNote attribute refers to the lowest written note.

Contrabass bases

Contrabass read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Contrabass read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Contrabass methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Contrabass instance variables

Instance variables inherited from Music21Object:

Contrabassoon

class music21.instrument.Contrabassoon

Contrabassoon bases

Contrabassoon read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Contrabassoon read/write properties

Read/write properties inherited from Music21Object:

Contrabassoon methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Contrabassoon instance variables

Instance variables inherited from Music21Object:

Cowbell

class music21.instrument.Cowbell

Cowbell bases

Cowbell read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Cowbell read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Cowbell methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Cowbell instance variables

Instance variables inherited from Music21Object:

CrashCymbals

class music21.instrument.CrashCymbals

CrashCymbals bases

CrashCymbals read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

CrashCymbals read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

CrashCymbals methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

CrashCymbals instance variables

Instance variables inherited from Music21Object:

Cymbals

class music21.instrument.Cymbals

Cymbals bases

Cymbals read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Cymbals read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Cymbals methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Cymbals instance variables

Instance variables inherited from Music21Object:

Dulcimer

class music21.instrument.Dulcimer

Dulcimer bases

Dulcimer read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Dulcimer read/write properties

Read/write properties inherited from Music21Object:

Dulcimer methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Dulcimer instance variables

Instance variables inherited from Music21Object:

ElectricBass

class music21.instrument.ElectricBass

ElectricBass bases

ElectricBass read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

ElectricBass read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

ElectricBass methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

ElectricBass instance variables

Instance variables inherited from Music21Object:

ElectricGuitar

class music21.instrument.ElectricGuitar

ElectricGuitar bases

ElectricGuitar read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

ElectricGuitar read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

ElectricGuitar methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

ElectricGuitar instance variables

Instance variables inherited from Music21Object:

ElectricOrgan

class music21.instrument.ElectricOrgan

ElectricOrgan bases

ElectricOrgan read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

ElectricOrgan read/write properties

Read/write properties inherited from Music21Object:

ElectricOrgan methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

ElectricOrgan instance variables

Instance variables inherited from Music21Object:

ElectricPiano

class music21.instrument.ElectricPiano
>>> p = instrument.ElectricPiano()
>>> p.instrumentName
'Electric Piano'
>>> p.midiProgram
2

ElectricPiano bases

ElectricPiano read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

ElectricPiano read/write properties

Read/write properties inherited from Music21Object:

ElectricPiano methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

ElectricPiano instance variables

Instance variables inherited from Music21Object:

EnglishHorn

class music21.instrument.EnglishHorn

EnglishHorn bases

EnglishHorn read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

EnglishHorn read/write properties

Read/write properties inherited from Music21Object:

EnglishHorn methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

EnglishHorn instance variables

Instance variables inherited from Music21Object:

FingerCymbals

class music21.instrument.FingerCymbals

FingerCymbals bases

FingerCymbals read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

FingerCymbals read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

FingerCymbals methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

FingerCymbals instance variables

Instance variables inherited from Music21Object:

Flute

class music21.instrument.Flute

Flute bases

Flute read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Flute read/write properties

Read/write properties inherited from Music21Object:

Flute methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Flute instance variables

Instance variables inherited from Music21Object:

FretlessBass

class music21.instrument.FretlessBass

FretlessBass bases

FretlessBass read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

FretlessBass read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

FretlessBass methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

FretlessBass instance variables

Instance variables inherited from Music21Object:

Glockenspiel

class music21.instrument.Glockenspiel

Glockenspiel bases

Glockenspiel read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Glockenspiel read/write properties

Read/write properties inherited from Music21Object:

Glockenspiel methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Glockenspiel instance variables

Instance variables inherited from Music21Object:

Gong

class music21.instrument.Gong

Gong bases

Gong read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Gong read/write properties

Read/write properties inherited from Music21Object:

Gong methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Gong instance variables

Instance variables inherited from Music21Object:

Guitar

class music21.instrument.Guitar

Guitar bases

Guitar read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Guitar read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Guitar methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Guitar instance variables

Instance variables inherited from Music21Object:

Handbells

class music21.instrument.Handbells

Handbells bases

Handbells read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Handbells read/write properties

Read/write properties inherited from Music21Object:

Handbells methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Handbells instance variables

Instance variables inherited from Music21Object:

Harmonica

class music21.instrument.Harmonica

Harmonica bases

Harmonica read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Harmonica read/write properties

Read/write properties inherited from Music21Object:

Harmonica methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Harmonica instance variables

Instance variables inherited from Music21Object:

Harp

class music21.instrument.Harp

Harp bases

Harp read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Harp read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Harp methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Harp instance variables

Instance variables inherited from Music21Object:

Harpsichord

class music21.instrument.Harpsichord

Harpsichord bases

Harpsichord read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Harpsichord read/write properties

Read/write properties inherited from Music21Object:

Harpsichord methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Harpsichord instance variables

Instance variables inherited from Music21Object:

HiHatCymbal

class music21.instrument.HiHatCymbal

HiHatCymbal bases

HiHatCymbal read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

HiHatCymbal read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

HiHatCymbal methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

HiHatCymbal instance variables

Instance variables inherited from Music21Object:

Horn

class music21.instrument.Horn
>>> hn = instrument.Horn()
>>> hn.instrumentName
'Horn'
>>> hn.midiProgram
60
>>> 'BrassInstrument' in hn.classes
True

Horn bases

Horn read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Horn read/write properties

Read/write properties inherited from Music21Object:

Horn methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Horn instance variables

Instance variables inherited from Music21Object:

Kalimba

class music21.instrument.Kalimba

Kalimba bases

Kalimba read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Kalimba read/write properties

Read/write properties inherited from Music21Object:

Kalimba methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Kalimba instance variables

Instance variables inherited from Music21Object:

KeyboardInstrument

class music21.instrument.KeyboardInstrument

KeyboardInstrument bases

KeyboardInstrument read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

KeyboardInstrument read/write properties

Read/write properties inherited from Music21Object:

KeyboardInstrument methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

KeyboardInstrument instance variables

Instance variables inherited from Music21Object:

Koto

class music21.instrument.Koto

Koto bases

Koto read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Koto read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Koto methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Koto instance variables

Instance variables inherited from Music21Object:

Lute

class music21.instrument.Lute

Lute bases

Lute read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Lute read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Lute methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Lute instance variables

Instance variables inherited from Music21Object:

Mandolin

class music21.instrument.Mandolin

Mandolin bases

Mandolin read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Mandolin read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Mandolin methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Mandolin instance variables

Instance variables inherited from Music21Object:

Maracas

class music21.instrument.Maracas

Maracas bases

Maracas read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Maracas read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Maracas methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Maracas instance variables

Instance variables inherited from Music21Object:

Marimba

class music21.instrument.Marimba

Marimba bases

Marimba read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Marimba read/write properties

Read/write properties inherited from Music21Object:

Marimba methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Marimba instance variables

Instance variables inherited from Music21Object:

MezzoSoprano

class music21.instrument.MezzoSoprano

MezzoSoprano bases

MezzoSoprano read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

MezzoSoprano read/write properties

Read/write properties inherited from Music21Object:

MezzoSoprano methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

MezzoSoprano instance variables

Instance variables inherited from Music21Object:

Oboe

class music21.instrument.Oboe

Oboe bases

Oboe read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Oboe read/write properties

Read/write properties inherited from Music21Object:

Oboe methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Oboe instance variables

Instance variables inherited from Music21Object:

Ocarina

class music21.instrument.Ocarina

Ocarina bases

Ocarina read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Ocarina read/write properties

Read/write properties inherited from Music21Object:

Ocarina methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Ocarina instance variables

Instance variables inherited from Music21Object:

Organ

class music21.instrument.Organ

Organ bases

Organ read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Organ read/write properties

Read/write properties inherited from Music21Object:

Organ methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Organ instance variables

Instance variables inherited from Music21Object:

PanFlute

class music21.instrument.PanFlute

PanFlute bases

PanFlute read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

PanFlute read/write properties

Read/write properties inherited from Music21Object:

PanFlute methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

PanFlute instance variables

Instance variables inherited from Music21Object:

Percussion

class music21.instrument.Percussion

Percussion bases

Percussion read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Percussion read/write properties

Read/write properties inherited from Music21Object:

Percussion methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Percussion instance variables

Instance variables inherited from Music21Object:

Piano

class music21.instrument.Piano
>>> p = instrument.Piano()
>>> p.instrumentName
'Piano'
>>> p.midiProgram
0

Piano bases

Piano read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Piano read/write properties

Read/write properties inherited from Music21Object:

Piano methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Piano instance variables

Instance variables inherited from Music21Object:

Piccolo

class music21.instrument.Piccolo

Piccolo bases

Piccolo read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Piccolo read/write properties

Read/write properties inherited from Music21Object:

Piccolo methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Piccolo instance variables

Instance variables inherited from Music21Object:

PipeOrgan

class music21.instrument.PipeOrgan

PipeOrgan bases

PipeOrgan read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

PipeOrgan read/write properties

Read/write properties inherited from Music21Object:

PipeOrgan methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

PipeOrgan instance variables

Instance variables inherited from Music21Object:

PitchedPercussion

class music21.instrument.PitchedPercussion

PitchedPercussion bases

PitchedPercussion read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

PitchedPercussion read/write properties

Read/write properties inherited from Music21Object:

PitchedPercussion methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

PitchedPercussion instance variables

Instance variables inherited from Music21Object:

Ratchet

class music21.instrument.Ratchet

Ratchet bases

Ratchet read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Ratchet read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Ratchet methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Ratchet instance variables

Instance variables inherited from Music21Object:

Recorder

class music21.instrument.Recorder

Recorder bases

Recorder read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Recorder read/write properties

Read/write properties inherited from Music21Object:

Recorder methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Recorder instance variables

Instance variables inherited from Music21Object:

ReedOrgan

class music21.instrument.ReedOrgan

ReedOrgan bases

ReedOrgan read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

ReedOrgan read/write properties

Read/write properties inherited from Music21Object:

ReedOrgan methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

ReedOrgan instance variables

Instance variables inherited from Music21Object:

RideCymbals

class music21.instrument.RideCymbals

RideCymbals bases

RideCymbals read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

RideCymbals read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

RideCymbals methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

RideCymbals instance variables

Instance variables inherited from Music21Object:

Sampler

class music21.instrument.Sampler

Sampler bases

Sampler read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Sampler read/write properties

Read/write properties inherited from Music21Object:

Sampler methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Sampler instance variables

Instance variables inherited from Music21Object:

SandpaperBlocks

class music21.instrument.SandpaperBlocks

SandpaperBlocks bases

SandpaperBlocks read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

SandpaperBlocks read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

SandpaperBlocks methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

SandpaperBlocks instance variables

Instance variables inherited from Music21Object:

Saxophone

class music21.instrument.Saxophone

Saxophone bases

Saxophone read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Saxophone read/write properties

Read/write properties inherited from Music21Object:

Saxophone methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Saxophone instance variables

Instance variables inherited from Music21Object:

SearchLanguage

class music21.instrument.SearchLanguage(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)

SearchLanguage bases

Shakuhachi

class music21.instrument.Shakuhachi

Shakuhachi bases

Shakuhachi read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Shakuhachi read/write properties

Read/write properties inherited from Music21Object:

Shakuhachi methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Shakuhachi instance variables

Instance variables inherited from Music21Object:

Shamisen

class music21.instrument.Shamisen

Shamisen bases

Shamisen read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Shamisen read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Shamisen methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Shamisen instance variables

Instance variables inherited from Music21Object:

Shehnai

class music21.instrument.Shehnai

Shehnai bases

Shehnai read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Shehnai read/write properties

Read/write properties inherited from Music21Object:

Shehnai methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Shehnai instance variables

Instance variables inherited from Music21Object:

Siren

class music21.instrument.Siren

Siren bases

Siren read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Siren read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Siren methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Siren instance variables

Instance variables inherited from Music21Object:

Sitar

class music21.instrument.Sitar

Sitar bases

Sitar read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Sitar read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Sitar methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Sitar instance variables

Instance variables inherited from Music21Object:

SizzleCymbal

class music21.instrument.SizzleCymbal

SizzleCymbal bases

SizzleCymbal read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

SizzleCymbal read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

SizzleCymbal methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

SizzleCymbal instance variables

Instance variables inherited from Music21Object:

SleighBells

class music21.instrument.SleighBells

SleighBells bases

SleighBells read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

SleighBells read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

SleighBells methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

SleighBells instance variables

Instance variables inherited from Music21Object:

SnareDrum

class music21.instrument.SnareDrum

SnareDrum bases

SnareDrum read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

SnareDrum read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

SnareDrum methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

SnareDrum instance variables

Instance variables inherited from Music21Object:

Soprano

class music21.instrument.Soprano

Soprano bases

Soprano read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Soprano read/write properties

Read/write properties inherited from Music21Object:

Soprano methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Soprano instance variables

Instance variables inherited from Music21Object:

SopranoSaxophone

class music21.instrument.SopranoSaxophone

SopranoSaxophone bases

SopranoSaxophone read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

SopranoSaxophone read/write properties

Read/write properties inherited from Music21Object:

SopranoSaxophone methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

SopranoSaxophone instance variables

Instance variables inherited from Music21Object:

SplashCymbals

class music21.instrument.SplashCymbals

SplashCymbals bases

SplashCymbals read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

SplashCymbals read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

SplashCymbals methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

SplashCymbals instance variables

Instance variables inherited from Music21Object:

SteelDrum

class music21.instrument.SteelDrum

SteelDrum bases

SteelDrum read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

SteelDrum read/write properties

Read/write properties inherited from Music21Object:

SteelDrum methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

SteelDrum instance variables

Instance variables inherited from Music21Object:

StringInstrument

class music21.instrument.StringInstrument

StringInstrument bases

StringInstrument read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

StringInstrument read/write properties

StringInstrument.stringPitches

stringPitches is a property that stores a list of Pitches (or pitch names, such as “C4”) that represent the pitch of the open strings from lowest to highest.[*]

>>> vln1 = instrument.Violin()
>>> [str(p) for p in vln1.stringPitches]
['G3', 'D4', 'A4', 'E5']

instrument.stringPitches are full pitch objects, not just names:

>>> [x.octave for x in vln1.stringPitches]
[3, 4, 4, 5]

Scordatura for Scelsi’s violin concerto Anahit. (N.B. that string to pitch conversion is happening automatically)

>>> vln1.stringPitches = ['G3', 'G4', 'B4', 'D4']

([*]In some tuning methods such as reentrant tuning on the ukulele, lute, or five-string banjo the order might not strictly be from lowest to highest. The same would hold true for certain violin scordatura pieces, such as some of Biber’s *Mystery Sonatas*)

Read/write properties inherited from Music21Object:

StringInstrument methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

StringInstrument instance variables

Instance variables inherited from Music21Object:

SuspendedCymbal

class music21.instrument.SuspendedCymbal

SuspendedCymbal bases

SuspendedCymbal read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

SuspendedCymbal read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

SuspendedCymbal methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

SuspendedCymbal instance variables

Instance variables inherited from Music21Object:

Taiko

class music21.instrument.Taiko

Taiko bases

Taiko read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Taiko read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Taiko methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Taiko instance variables

Instance variables inherited from Music21Object:

TamTam

class music21.instrument.TamTam

TamTam bases

TamTam read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

TamTam read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

TamTam methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

TamTam instance variables

Instance variables inherited from Music21Object:

Tambourine

class music21.instrument.Tambourine

Tambourine bases

Tambourine read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Tambourine read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Tambourine methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Tambourine instance variables

Instance variables inherited from Music21Object:

TempleBlock

class music21.instrument.TempleBlock

TempleBlock bases

TempleBlock read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

TempleBlock read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

TempleBlock methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

TempleBlock instance variables

Instance variables inherited from Music21Object:

Tenor

class music21.instrument.Tenor

Tenor bases

Tenor read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Tenor read/write properties

Read/write properties inherited from Music21Object:

Tenor methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Tenor instance variables

Instance variables inherited from Music21Object:

TenorDrum

class music21.instrument.TenorDrum

TenorDrum bases

TenorDrum read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

TenorDrum read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

TenorDrum methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

TenorDrum instance variables

Instance variables inherited from Music21Object:

TenorSaxophone

class music21.instrument.TenorSaxophone

TenorSaxophone bases

TenorSaxophone read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

TenorSaxophone read/write properties

Read/write properties inherited from Music21Object:

TenorSaxophone methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

TenorSaxophone instance variables

Instance variables inherited from Music21Object:

Timbales

class music21.instrument.Timbales

Timbales bases

Timbales read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Timbales read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Timbales methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Timbales instance variables

Instance variables inherited from Music21Object:

Timpani

class music21.instrument.Timpani

Timpani bases

Timpani read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Timpani read/write properties

Read/write properties inherited from Music21Object:

Timpani methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Timpani instance variables

Instance variables inherited from Music21Object:

TomTom

class music21.instrument.TomTom

TomTom bases

TomTom read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

TomTom read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

TomTom methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

TomTom instance variables

Instance variables inherited from Music21Object:

Triangle

class music21.instrument.Triangle

Triangle bases

Triangle read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Triangle read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Triangle methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Triangle instance variables

Instance variables inherited from Music21Object:

Trombone

class music21.instrument.Trombone

Trombone bases

Trombone read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Trombone read/write properties

Read/write properties inherited from Music21Object:

Trombone methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Trombone instance variables

Instance variables inherited from Music21Object:

Trumpet

class music21.instrument.Trumpet

Trumpet bases

Trumpet read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Trumpet read/write properties

Read/write properties inherited from Music21Object:

Trumpet methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Trumpet instance variables

Instance variables inherited from Music21Object:

Tuba

class music21.instrument.Tuba

Tuba bases

Tuba read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Tuba read/write properties

Read/write properties inherited from Music21Object:

Tuba methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Tuba instance variables

Instance variables inherited from Music21Object:

TubularBells

class music21.instrument.TubularBells

TubularBells bases

TubularBells read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

TubularBells read/write properties

Read/write properties inherited from Music21Object:

TubularBells methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

TubularBells instance variables

Instance variables inherited from Music21Object:

Ukulele

class music21.instrument.Ukulele

Ukulele bases

Ukulele read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Ukulele read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Ukulele methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Ukulele instance variables

Instance variables inherited from Music21Object:

UnpitchedPercussion

class music21.instrument.UnpitchedPercussion

UnpitchedPercussion bases

UnpitchedPercussion read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

UnpitchedPercussion read/write properties

UnpitchedPercussion.modifier

Returns or sets the modifier for this instrument. A modifier could be something like “low-floor” for a TomTom or “rimshot” for a SnareDrum.

If the modifier is in the object’s ._modifierToPercMapPitch dictionary then changing the modifier also changes the .percMapPitch for the object

>>> bd = instrument.BongoDrums()
>>> bd.modifier
'high'

>>> bd.percMapPitch
60
>>> bd.modifier = 'low'
>>> bd.percMapPitch
61

Variations on modifiers can also be used and they get normalized:

>>> wb1 = instrument.Woodblock()
>>> wb1.percMapPitch
76
>>> wb1.modifier = 'LO'
>>> wb1.percMapPitch
77
>>> wb1.modifier  # n.b. -- not LO
'low'

Read/write properties inherited from Music21Object:

UnpitchedPercussion methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

UnpitchedPercussion instance variables

Instance variables inherited from Music21Object:

Vibraphone

class music21.instrument.Vibraphone

Vibraphone bases

Vibraphone read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Vibraphone read/write properties

Read/write properties inherited from Music21Object:

Vibraphone methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Vibraphone instance variables

Instance variables inherited from Music21Object:

Vibraslap

class music21.instrument.Vibraslap

Vibraslap bases

Vibraslap read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Vibraslap read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Vibraslap methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Vibraslap instance variables

Instance variables inherited from Music21Object:

Viola

class music21.instrument.Viola

Viola bases

Viola read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Viola read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Viola methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Viola instance variables

Instance variables inherited from Music21Object:

Violin

class music21.instrument.Violin

Violin bases

Violin read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Violin read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Violin methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Violin instance variables

Instance variables inherited from Music21Object:

Violoncello

class music21.instrument.Violoncello

Violoncello bases

Violoncello read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Violoncello read/write properties

Read/write properties inherited from StringInstrument:

Read/write properties inherited from Music21Object:

Violoncello methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Violoncello instance variables

Instance variables inherited from Music21Object:

Vocalist

class music21.instrument.Vocalist

n.b. called Vocalist to not be confused with stream.Voice

Vocalist bases

Vocalist read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Vocalist read/write properties

Read/write properties inherited from Music21Object:

Vocalist methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Vocalist instance variables

Instance variables inherited from Music21Object:

Whip

class music21.instrument.Whip

Whip bases

Whip read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Whip read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Whip methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Whip instance variables

Instance variables inherited from Music21Object:

Whistle

class music21.instrument.Whistle

Whistle bases

Whistle read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Whistle read/write properties

Read/write properties inherited from Music21Object:

Whistle methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Whistle instance variables

Instance variables inherited from Music21Object:

WindMachine

class music21.instrument.WindMachine

WindMachine bases

WindMachine read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

WindMachine read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

WindMachine methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

WindMachine instance variables

Instance variables inherited from Music21Object:

Woodblock

class music21.instrument.Woodblock

Woodblock bases

Woodblock read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Woodblock read/write properties

Read/write properties inherited from UnpitchedPercussion:

Read/write properties inherited from Music21Object:

Woodblock methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Woodblock instance variables

Instance variables inherited from Music21Object:

WoodwindInstrument

class music21.instrument.WoodwindInstrument

WoodwindInstrument bases

WoodwindInstrument read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

WoodwindInstrument read/write properties

Read/write properties inherited from Music21Object:

WoodwindInstrument methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

WoodwindInstrument instance variables

Instance variables inherited from Music21Object:

Xylophone

class music21.instrument.Xylophone

Xylophone bases

Xylophone read-only properties

Read-only properties inherited from Music21Object:

Read-only properties inherited from ProtoM21Object:

Xylophone read/write properties

Read/write properties inherited from Music21Object:

Xylophone methods

Methods inherited from Instrument:

Methods inherited from Music21Object:

Methods inherited from ProtoM21Object:

Xylophone instance variables

Instance variables inherited from Music21Object:

Functions

music21.instrument.bundleInstruments(streamIn: music21.stream.Stream, *, inPlace=False) → music21.stream.Stream | None
>>> up1 = note.Unpitched()
>>> up1.storedInstrument = instrument.BassDrum()
>>> upUnknownInstrument = note.Unpitched()

>>> up2 = note.Unpitched()
>>> up2.storedInstrument = instrument.Cowbell()
>>> s = stream.Stream()
>>> s.append(up1)
>>> s.append(upUnknownInstrument)
>>> s.append(up2)
>>> s2 = instrument.unbundleInstruments(s)
>>> s3 = instrument.bundleInstruments(s2)
>>> for test in s3:
...     print(test.storedInstrument)
Bass Drum
Bass Drum
Cowbell
music21.instrument.deduplicate(s: music21.stream.Stream, inPlace: bool = False) → music21.stream.Stream

Check every offset in s for multiple instrument instances. If the .partName can be standardized across instances, i.e. if each instance has the same value or None, and likewise for .instrumentName, standardize the attributes. Further, and only if the above conditions are met, if there are two instances of the same class, remove all but one; if at least one generic Instrument instance is found at the same offset as one or more specific instruments, remove the generic Instrument instances.

Two Instrument instances:

>>> i1 = instrument.Instrument(instrumentName='Semi-Hollow Body')
>>> i2 = instrument.Instrument()
>>> i2.partName = 'Electric Guitar'
>>> s1 = stream.Stream()
>>> s1.insert(4, i1)
>>> s1.insert(4, i2)
>>> list(s1.getInstruments())
[<music21.instrument.Instrument 'Semi-Hollow Body'>,
    <music21.instrument.Instrument 'Electric Guitar: '>]
>>> post = instrument.deduplicate(s1)
>>> list(post.getInstruments())
[<music21.instrument.Instrument 'Electric Guitar: Semi-Hollow Body'>]

One Instrument instance and one subclass instance, with inPlace and parts:

>>> from music21.stream import Score, Part
>>> i3 = instrument.Instrument()
>>> i3.partName = 'Piccolo'
>>> i4 = instrument.Piccolo()
>>> s2 = stream.Score()
>>> p1 = stream.Part()
>>> p1.append([i3, i4])
>>> p2 = stream.Part()
>>> p2.append([instrument.Flute(), instrument.Flute()])
>>> s2.insert(0, p1)
>>> s2.insert(0, p2)
>>> list(p1.getInstruments())
[<music21.instrument.Instrument 'Piccolo: '>, <music21.instrument.Piccolo 'Piccolo'>]
>>> list(p2.getInstruments())
[<music21.instrument.Flute 'Flute'>, <music21.instrument.Flute 'Flute'>]
>>> s2 = instrument.deduplicate(s2, inPlace=True)
>>> list(p1.getInstruments())
[<music21.instrument.Piccolo 'Piccolo: Piccolo'>]
>>> list(p2.getInstruments())
[<music21.instrument.Flute 'Flute'>]
music21.instrument.ensembleNameBySize(number)

return the name of a generic ensemble with “number” players:

>>> instrument.ensembleNameBySize(4)
'quartet'
>>> instrument.ensembleNameBySize(1)
'solo'
>>> instrument.ensembleNameBySize(83)
'treoctogetet'
music21.instrument.fromString(instrumentString: str, language: SearchLanguage = SearchLanguage.ALL)

Given a string with instrument content (from an orchestral score for example), attempts to return an appropriate Instrument.

>>> t1 = instrument.fromString('Clarinet 2 in A')
>>> t1
<music21.instrument.Clarinet 'Clarinet 2 in A'>
>>> t1.transposition
<music21.interval.Interval m-3>

>>> t2 = instrument.fromString('Clarinetto 3')
>>> t2
<music21.instrument.Clarinet 'Clarinetto 3'>

>>> t3 = instrument.fromString('flauto 2')
>>> t3
<music21.instrument.Flute 'flauto 2'>

Excess information is ignored, and the useful information can be extracted correctly as long as it’s sequential.

>>> t4 = instrument.fromString('I <3 music saxofono tenore go beavers')
>>> t4
<music21.instrument.TenorSaxophone 'I <3 music saxofono tenore go beavers'>

Some more demos:

>>> t5 = instrument.fromString('Bb Clarinet')
>>> t5
<music21.instrument.Clarinet 'Bb Clarinet'>
>>> t5.transposition
<music21.interval.Interval M-2>

>>> t6 = instrument.fromString('Clarinet in B-flat')
>>> t5.__class__ == t6.__class__
True

>>> t5.transposition == t6.transposition
True

>>> t7 = instrument.fromString('B-flat Clarinet.')
>>> t5.__class__ == t7.__class__ and t5.transposition == t7.transposition
True

>>> t8 = instrument.fromString('Eb Clarinet')
>>> t5.__class__ == t8.__class__
True
>>> t8.transposition
<music21.interval.Interval m3>

Note that because of the ubiquity of B-flat clarinets and trumpets, and the rareness of B-natural forms of those instruments, this gives a B-flat, not B-natural clarinet, using the German form:

>>> t9 = instrument.fromString('Klarinette in B.')
>>> t9
<music21.instrument.Clarinet 'Klarinette in B.'>
>>> t9.transposition
<music21.interval.Interval M-2>

Use “H” or “b-natural” to get an instrument in B-major. Or donate one to me, and I’ll change this back!

Standard abbreviations are acceptable:

>>> t10 = instrument.fromString('Cl in B-flat')
>>> t10
<music21.instrument.Clarinet 'Cl in B-flat'>
>>> t10.transposition
<music21.interval.Interval M-2>

This should work with or without a terminal period (for both ‘Cl’ and ‘Cl.’):

>>> t11 = instrument.fromString('Cl. in B-flat')
>>> t11.__class__ == t10.__class__
True

Previously an exact instrument name was not always working:

>>> instrument.fromString('Flute')
<music21.instrument.Flute 'Flute'>

This common MIDI instrument was not previously working:

>>> instrument.fromString('Choir (Aahs)')
<music21.instrument.Choir 'Choir (Aahs)'>

By default, this function searches over all stored instrument names. This includes multiple languages as well as the abbreviations (an honorary ‘language’ for these purposes).

Alternatively, you can specify the language to search using the language argument. (New in v7.3.)

>>> t12 = instrument.fromString('Klarinette', language=instrument.SearchLanguage.GERMAN)
>>> t12
<music21.instrument.Clarinet 'Klarinette'>

This case works because the name ‘Klarinette’ is a recognised instrument name in German and appears in the German language list. If you search for a German name like ‘Klarinette’ on the French list (language=’french’), then it won’t be found and an InstrumentException will be raised. An InstrumentException is also raised if the specified language is not one of those currently supported: ‘english’, ‘french’, ‘german’, ‘italian’, ‘russian’, ‘spanish’, and ‘abbreviation’.

Note that the language string is not case-sensitive, so ‘French’ is also fine.

music21.instrument.getAllNamesForInstrument(instrumentClass: Instrument, language: SearchLanguage = SearchLanguage.ALL)

Retrieves all currently stored names for a given instrument.

The instrumentClass should be a valid music21 Instrument.

By default, this function searches over all supported languages including instrument name abbreviations (an honorary ‘language’ for these purposes), and returns a dict with keys for the language tested and values as a list of strings for any names in that language.

>>> instrument.getAllNamesForInstrument(instrument.Flute())
{'english': ['flute', 'flutes', 'transverse flute'],
'french': ['flûte', 'flûte traversière', 'flûtes', 'grande flûte'],
'german': ['flöte', 'flöten', 'querflöte'],
'italian': ['flauti', 'flauto', 'flauto traverso'],
'russian': ['fleita'],
'spanish': ['flauta', 'flauta de boehm', 'flauta de concierto',
            'flauta traversa', 'flauta travesera', 'flautas'],
'abbreviation': ['fl']}

Alternatively, you can specify the language to search using the language argument.

>>> instrument.getAllNamesForInstrument(instrument.Flute(), language='german')
{'german': ['flöte', 'flöten', 'querflöte']}

An InstrumentException is raised if the specified language is not one of those currently supported: ‘english’, ‘french’, ‘german’, ‘italian’, ‘russian’, ‘spanish’, and ‘abbreviation’.

Note that the language string is not case-sensitive, so ‘German’ is also fine.

music21.instrument.instrumentFromMidiProgram(number: int) → Instrument

Return the instrument with “number” as its assigned MIDI program. Notice any of the values 0-5 will return Piano.

Lookups are performed against instrument.MIDI_PROGRAM_TO_INSTRUMENT.

>>> instrument.instrumentFromMidiProgram(4)
<music21.instrument.ElectricPiano 'Electric Piano'>
>>> instrument.instrumentFromMidiProgram(21)
<music21.instrument.Accordion 'Accordion'>
>>> instrument.instrumentFromMidiProgram(500)
Traceback (most recent call last):
music21.exceptions21.InstrumentException: No instrument found for MIDI program 500
>>> instrument.instrumentFromMidiProgram('43')
Traceback (most recent call last):
TypeError: Expected int, got <class 'str'>
music21.instrument.partitionByInstrument(streamObj: music21.stream.Stream) → music21.stream.Stream

Given a single Stream, or a Score or similar multi-part structure, partition into a Part for each unique Instrument, joining events possibly from different parts.

>>> p1 = converter.parse("tinynotation: 4/4 c4  d  e  f  g  a  b  c'  c1")
>>> p2 = converter.parse("tinynotation: 4/4 C#4 D# E# F# G# A# B# c#  C#1")

>>> p1.getElementsByClass(stream.Measure)[0].insert(0.0, instrument.Piccolo())
>>> p1.getElementsByClass(stream.Measure)[0].insert(2.0, instrument.AltoSaxophone())
>>> p1.getElementsByClass(stream.Measure)[1].insert(3.0, instrument.Piccolo())

>>> p2.getElementsByClass(stream.Measure)[0].insert(0.0, instrument.Trombone())
>>> p2.getElementsByClass(stream.Measure)[0].insert(3.0, instrument.Piccolo())  # not likely...
>>> p2.getElementsByClass(stream.Measure)[1].insert(1.0, instrument.Trombone())

>>> s = stream.Score()
>>> s.insert(0, p1)
>>> s.insert(0, p2)
>>> s.show('text')
{0.0} <music21.stream.Part ...>
    {0.0} <music21.stream.Measure 1 offset=0.0>
        {0.0} <music21.instrument.Piccolo 'Piccolo'>
        {0.0} <music21.clef.TrebleClef>
        {0.0} <music21.meter.TimeSignature 4/4>
        {0.0} <music21.note.Note C>
        {1.0} <music21.note.Note D>
        {2.0} <music21.instrument.AltoSaxophone 'Alto Saxophone'>
        {2.0} <music21.note.Note E>
        {3.0} <music21.note.Note F>
    {4.0} <music21.stream.Measure 2 offset=4.0>
        {0.0} <music21.note.Note G>
        {1.0} <music21.note.Note A>
        {2.0} <music21.note.Note B>
        {3.0} <music21.instrument.Piccolo 'Piccolo'>
        {3.0} <music21.note.Note C>
    {8.0} <music21.stream.Measure 3 offset=8.0>
        {0.0} <music21.note.Note C>
        {4.0} <music21.bar.Barline type=final>
{0.0} <music21.stream.Part ...>
    {0.0} <music21.stream.Measure 1 offset=0.0>
        {0.0} <music21.instrument.Trombone 'Trombone'>
        {0.0} <music21.clef.BassClef>
        {0.0} <music21.meter.TimeSignature 4/4>
        {0.0} <music21.note.Note C#>
        {1.0} <music21.note.Note D#>
        {2.0} <music21.note.Note E#>
        {3.0} <music21.instrument.Piccolo 'Piccolo'>
        {3.0} <music21.note.Note F#>
    {4.0} <music21.stream.Measure 2 offset=4.0>
        {0.0} <music21.note.Note G#>
        {1.0} <music21.instrument.Trombone 'Trombone'>
        {1.0} <music21.note.Note A#>
        {2.0} <music21.note.Note B#>
        {3.0} <music21.note.Note C#>
    {8.0} <music21.stream.Measure 3 offset=8.0>
        {0.0} <music21.note.Note C#>
        {4.0} <music21.bar.Barline type=final>

>>> s2 = instrument.partitionByInstrument(s)
>>> len(s2.parts)
3

# TODO: this step might not be necessary… >>> for p in s2.parts: … p.makeRests(fillGaps=True, inPlace=True)

# TODO: this step SHOULD not be necessary (.template())…

>>> for p in s2.parts:
...     p.makeMeasures(inPlace=True)
...     p.makeTies(inPlace=True)

>>> s2.show('text')
{0.0} <music21.stream.Part Piccolo>
    {0.0} <music21.stream.Measure 1 offset=0.0>
        {0.0} <music21.instrument.Piccolo 'Piccolo'>
        {0.0} <music21.clef.TrebleClef>
        {0.0} <music21.meter.TimeSignature 4/4>
        {0.0} <music21.note.Note C>
        {1.0} <music21.note.Note D>
        {2.0} <music21.note.Rest quarter>
        {3.0} <music21.note.Note F#>
    {4.0} <music21.stream.Measure 2 offset=4.0>
        {0.0} <music21.note.Note G#>
        {1.0} <music21.note.Rest half>
        {3.0} <music21.note.Note C>
    {8.0} <music21.stream.Measure 3 offset=8.0>
        {0.0} <music21.note.Note C>
        {4.0} <music21.bar.Barline type=final>
{0.0} <music21.stream.Part Alto Saxophone>
    {0.0} <music21.stream.Measure 1 offset=0.0>
        {0.0} <music21.instrument.AltoSaxophone 'Alto Saxophone'>
        {0.0} <music21.clef.TrebleClef>
        {0.0} <music21.meter.TimeSignature 4/4>
        {0.0} <music21.note.Rest half>
        {2.0} <music21.note.Note E>
        {3.0} <music21.note.Note F>
    {4.0} <music21.stream.Measure 2 offset=4.0>
        {0.0} <music21.note.Note G>
        {1.0} <music21.note.Note A>
        {2.0} <music21.note.Note B>
        {3.0} <music21.bar.Barline type=final>
{0.0} <music21.stream.Part Trombone>
    {0.0} <music21.stream.Measure 1 offset=0.0>
        {0.0} <music21.instrument.Trombone 'Trombone'>
        {0.0} <music21.clef.BassClef>
        {0.0} <music21.meter.TimeSignature 4/4>
        {0.0} <music21.note.Note C#>
        {1.0} <music21.note.Note D#>
        {2.0} <music21.note.Note E#>
        {3.0} <music21.note.Rest quarter>
    {4.0} <music21.stream.Measure 2 offset=4.0>
        {0.0} <music21.note.Rest quarter>
        {1.0} <music21.note.Note A#>
        {2.0} <music21.note.Note B#>
        {3.0} <music21.note.Note C#>
    {8.0} <music21.stream.Measure 3 offset=8.0>
        {0.0} <music21.note.Note C#>
        {4.0} <music21.bar.Barline type=final>

Changes in v8: returns the original stream if there are no instruments.

TODO: parts should be in Score Order. Coincidence that this almost works. TODO: use proper recursion to make a copy of the stream. TODO: final barlines should be aligned.

music21.instrument.unbundleInstruments(streamIn: music21.stream.Stream, *, inPlace=False) → music21.stream.Stream | None

takes a Stream that has NotRest objects and moves their .storedInstrument attributes to a new Stream (unless inPlace=True)

>>> up1 = note.Unpitched()
>>> up1.storedInstrument = instrument.BassDrum()
>>> up2 = note.Unpitched()
>>> up2.storedInstrument = instrument.Cowbell()
>>> s = stream.Stream()
>>> s.append(up1)
>>> s.append(up2)
>>> s2 = instrument.unbundleInstruments(s)
>>> s2.show('text')
{0.0} <music21.instrument.BassDrum 'Bass Drum'>
{0.0} <music21.note.Unpitched object at 0x...>
{1.0} <music21.instrument.Cowbell 'Cowbell'>
{1.0} <music21.note.Unpitched object at 0x...>