JLCooper MCS2 MIDI - Manual (Page 13)

Play:
Play sends F0 7F 7F 06 02 F7 (MMC Play) and
BF 16 7F upon depression, and BF 16 00 upon release.
If Record is held down, Play sends an MMC Record strobe.
Shift Play sends F0 7F 7F 06 40 04 4F 02 00 01 F7
(Track Enable Track 3) upon depression.
Sends same controller as Play.
Option Play sends F0 7F 7F 06 40 04 4F 02 00 10 F7
(Track Enable Track 7) and BF 0D F7 upon depression,
BF 0D 00 upon release.
Shift Option Play sends F0 7F 7F 06 44 02 00 0B F7
(Locate to GP3) upon depression.
Sends same controller as Option Play.
Record:
The Record key does not send a MMC command unless the
Play is pressed also. Assuming that the Play key is held,
F0 7F 7F 06 06 F7 (MMC Record Strobe) is sent upon
depression, along with BF 17 7F. BF 17 00 is sent upon release.
Shift Record sends F0 7F 7F 06 40 04 4F 02 00 02 F7
(Track Enable Track 4) upon depression.
Sends same controller as Record.
Option Record sends F0 7F 7F 06 40 04 4F 02 00 20 F7
(Track Enable Track 8) and BF 0E 7F upon depression,
BF 0E 00 upon release.
Shift Option Record sends F0 7F 7F 06 44 02 00 0C F7
(Locate to GP4) upon depression.
Sends same controller as Option Record.
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