[gmpi] Re: 3.17 Instruments

The AU note system seems quite good.

In addition to the MIDI Note number, the Note Pitch is also sent...e.g.

Middle-A

NoteInstanceID   65
Note Number      65.0

"NoteInstanceID" is the Midi Note number.
"Note Number" is the pitch in semitones ("Pitch" would be a better name)

Most of the time, it's as simple as that.  Of course if the Host supports
alternate tunings you may get a different Pitch mapped to that key...

NoteInstanceID   65
Note Number      65.5

In this case, hitting MIDI key 65 results in a pitch halfway between A and
A#.

This system ties in nicely with the MIDI Tuning standard, which basically
lets you tune any MIDI note number to any frequency"...

http://www.midi.org/about-midi/tuning.shtml

Jeff







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