Apogee Sound System MIDI notes:
-------------------------------

FM Midi :

On OPL2 cards 9 voices are available.  OPL3 cards have 18 voices.  Melodic
mode is used for music.  For percussion (channel 10), each key is assigned
a timbre to play at a pitch specified by the patch.  This method was chosen
based on the advice of Bobby Prince, Rob Wallace, George Sanger, and Lee
Jackson, all of whom felt the 11 voice mode was too restricting for
musicians.

Channels 1-16 are now supported.

Controllers supported

6   data entry msb     |
38  data entry lsb     | - Only on Set Pitch Bend Range (RPN 0, 0)
96  data increment     |
97  data decrement     |
7   channel volume
10  pan (balance)
121 reset all controllers
123 all notes off


AWE32 :

All controllers supported by API.


Gravis Ultrasound:

1   modulation wheel
6   data entry msb     |
38  data entry lsb     | - Only on Set Pitch Bend Range (RPN 0, 0)
96  data increment     |
97  data decrement     |
7   channel volume
39  volume lsb ignored
10  pan (balance)
11  channel expression (volume)
43  expression lsb ignored
64  sustain (damper pedal)
100 set registered parameter number
101 set registered parameter number
121 reset all controllers

120 all sounds off     |
123 all notes off      |
124 omni off           | - Perform all notes off
125 omni on            |
126 mono               |
127 mono               |


General MIDI (all other cards):

All controllers sent.  Support depends on the card.