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Appendix
About MIDI
■ Program Change
Messages which determine which voice to select for each
Part. With a combination of Bank Select, you can select
not only basic voice numbers, but also variation voice
bank numbers.
■ Pitch Bend
Pitch Bend messages are continuous controller messages
that allow the pitch of designated notes to be raised or
lowered by a specified amount over a specified duration.
■ Channel Aftertouch
Messages which let you control the sounds by the
pressure you apply to the keys after the initial striking of
the keys, over the entire channel.
The MOTIF-RACK does not transmit this data from the
keyboard; however, the MOTIF-RACK does properly
respond to this data when received from an external
device.
■ Polyphonic Aftertouch
Messages which let you control the sounds by the
pressure you apply to the keys after the initial striking of
the keys, for each individual key.
SYSTEM MESSAGES
System messages are the data related to the overall
system of the device.
■
System Exclusive Messages
System Exclusive messages control various functions of
the MOTIF-RACK, including master volume and master
tuning, tone generator mode, effect type and various
other parameters.
General MIDI (GM) System On
(Sequence Play mode only)
When “General MIDI system on” is received, the
MOTIF-RACK will receive the MIDI messages which are
compatible with GM System Level 1, and consequently
will not receive NRPN and Bank Select messages.
F0 7E 7F 09 01 F7 (Hexadecimal)
n Make sure that the interval between this message and
the first note data of the song is at least a quarter note
or greater in length.
Master Volume
When received, the Volume MSB will be effective for the
System Parameter.
F0 7F 7F 04 01 ll mm F7 (Hexadecimal)
* mm (MSB) = appropriate volume value,
ll (LSB) = ignored
■ System Realtime Messages
System Realtime messages
Control the sequencer, including MIDI clock (F8H) and
Active Sensing messages (see below).
Active Sensing
Once FEH (Active Sensing) has been received, if no MIDI
data is subsequently received for longer than an interval
of approximately 300msec, the MOTIF-RACK will
perform the same function as when All Sounds Off, All
Notes Off, and Reset All Controllers messages are
received, and will then return to a status in which FEH is
not monitored
n Refer to the MIDI Data Format in the “Data List” book
for more information on the various messages.