Testing Plotting with Music21

Music21 used to manipulate the environment somewhat when loading matplotlib in Jupyter. This seems to no longer be needed after: https://github.com/ipython/ipython/issues/12190

But some issues still arise with double plotting of graphs and returning Axes, so this file helps test them.

from music21 import corpus

corpus.parse('bwv66.6').plot()
../_images/devTest_plots_w_m21_2_0.png 
x = corpus.parse('bwv66.6').plot()
../_images/devTest_plots_w_m21_3_0.png 
x is None

 True

corpus.parse('bwv66.6').plot(returnInNotebook=True)

 <music21.graph.plot.HorizontalBarPitchSpaceOffset for <music21.stream.Score bach/bwv66.6.mxl>>
../_images/devTest_plots_w_m21_5_1.png 
out = corpus.parse('bwv66.6').plot(returnInNotebook=True)
../_images/devTest_plots_w_m21_6_0.png 
out

 <music21.graph.plot.HorizontalBarPitchSpaceOffset for <music21.stream.Score bach/bwv66.6.mxl>>

dir(out)

 ['_DOC_ATTR',
  '_DOC_ORDER',
  '__annotations__',
  '__class__',
  '__del__',
  '__delattr__',
  '__dict__',
  '__dir__',
  '__doc__',
  '__eq__',
  '__format__',
  '__ge__',
  '__getattribute__',
  '__getstate__',
  '__gt__',
  '__hash__',
  '__init__',
  '__init_subclass__',
  '__le__',
  '__lt__',
  '__module__',
  '__ne__',
  '__new__',
  '__reduce__',
  '__reduce_ex__',
  '__repr__',
  '__setattr__',
  '__setstate__',
  '__sizeof__',
  '__slots__',
  '__str__',
  '__subclasshook__',
  '__weakref__',
  '_classSetCacheDict',
  '_classTupleCacheDict',
  '_dataColorIndex',
  '_doneAction',
  '_partsToColor',
  '_reprInternal',
  'allAxes',
  'alpha',
  'applyFormatting',
  'applyFormattingToOneAxis',
  'applyGrid',
  'assignColorsToParts',
  'axesClasses',
  'axis',
  'axisKeys',
  'axisRangeHasBeenSet',
  'axisX',
  'axisY',
  'barHeight',
  'barSpace',
  'callDoneAction',
  'classFilterList',
  'classSet',
  'classes',
  'colorBackgroundData',
  'colorBackgroundFigure',
  'colorByPart',
  'colorGrid',
  'colors',
  'data',
  'doneAction',
  'dpi',
  'extractChordDataMultiAxis',
  'extractChordDataOneAxis',
  'extractData',
  'figure',
  'figureSize',
  'figureSizeDefault',
  'fillValueLists',
  'fontFamily',
  'graphType',
  'grid',
  'hideAxisSpines',
  'hideLeftBottomSpines',
  'hideXGrid',
  'hideYGrid',
  'id',
  'isClassOrSubclass',
  'keywordConfigurables',
  'labelFontSize',
  'margin',
  'marker',
  'markersize',
  'matchPitchCountForChords',
  'nextColor',
  'plt',
  'postProcessData',
  'postProcessElement',
  'process',
  'processOneElement',
  'recurse',
  'renderSubplot',
  'run',
  'savedKeywords',
  'setAxisKeywords',
  'setAxisLabel',
  'setAxisRange',
  'setIntegerTicksFromData',
  'setTicks',
  'show',
  'streamObj',
  'subplot',
  'tickColors',
  'tickFontSize',
  'title',
  'titleFontSize',
  'write',
  'xTickLabelHorizontalAlignment',
  'xTickLabelRotation',
  'xTickLabelVerticalAlignment']

out.streamObj

 <music21.stream.Score bach/bwv66.6.mxl>

out.streamObj.metadata.corpusFilePath

 'bach/bwv66.6.mxl'