Man pages matching name load_midi_patches in section 3alleg4:

load_midi_patches.3alleg4.en	debian 10 / allegro4-doc
load_midi_patches.3alleg4.en	debian 11 / allegro4-doc
load_midi_patches.3alleg4.en	debian 12 / allegro4-doc
load_midi_patches.3alleg4.en	debian 13 / allegro4-doc