Appendix
1- Feature and Capabilities of a General MIDI (GM)
Any
device that bears the GM logo must adhere to these features:
24
voices of polyphony
Respond
to all 16 MIDI channels
Each
channel can access any number of voices
Each
channel can play a different timbre
A full
set of percussion instruments on channel 10
All
percussion instruments are mapped to specific MIDI note numbers
A minimum
of 128 presets available as MIDI program numbers
All
sounds available on all MIDI channels except channel 10
Respond
to note on velocity
Middle
C is always note number 60
All
GM devices respond to MIDI controllers 1-modulation, 7-volume, 10-pan,
11-expression, 64-sustain pedal, 121-reset all controllers, 123-all
notes off
GM devices
respond to all registered parameters 0-pitch bend sensitivity, 1-fine
tuning, 2-coarse tuning
GM devices
also respond to channel pressure and pitch bend (two semitone default)
