10a GM Instruments

Program Description

• This program generates random pitches within specified ranges (see Offsets). What is more, the the instrument may be set to any one of the 128 instruments in the GM 1 sound bank via the umenu object. (Notice that the menu adds an offset of 1 to each instrument number. See if you can figure out how it does that). The pgmout object implements a MIDI program change command on channel 1. The incoming number set the instrument.

New Objects

• pgmout
• umenu

Object Reference

• + | makenote & noteout | random | tempo

MIDI Specifications

• The MIDI Association
  • MIDI.org
  • General MIDI (GM) Specification {MIDI.org}
• The GM 1 Sound Set 
  • GM Instrument Map {SquareSpace.com}
  • GM Percussion Key Map {cmu.edu}
• Max’s Built-in General MIDI Synthesizers {Cycling ’74}
  • Mac OS: Apple Audio Unit DLS (Down-Loadable-Sounds) synthesizer
  • Windows: Microsoft GS Wavetable Synthesizer

Updated: 9/17/22