Roland TR-626 - Page 112

MIDI Function
(When data comes from other rhythm machines)
82
First write the rhythm pattern into the transmitter's memory that you
would like to make the TR-626 play, and then set the transmitter's
key numbers to the drum voice key numbers of the TR-626 that you
want to output the transmitter's rhythm pattern.
* The sound volume for each drum voice of the TR-626 will be
determined by velocity of Note Event in MIDI messages. Levels set in
the TR-626' s Bank will be ignored. Note that any sound source whose
level is set at O will not emit any sound even if received by MIDI.