Im trying to write a complete music using midiutil library with python. So far, i have been able to add any instrument i've wanted via
MIDIFile.addProgramChange(track, channel, time, program)
and taking the program number from the table at https://www.midi.org/specifications-old/item/gm-level-1-sound-set
However, i cant add any drumset sounds the way i want. I know channel 10 is reserved for percussion, but whenever i write anything via
MyMIDI.addNote(track, 10, pitch, time + i, duration, volume)
the sound played by musescore is played in the piano voice or in the voice defined by the ProgramChange method. I know there is drumset sounds somewhere in my computer because i have been able to manually add drumset sounds in musescore. Am i doing something wrong?