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E-55
Connection to a Computer
ALL SOUND OFF
This message forces all sound being produced over the
current channel to turn off, regardless of how the sound is
being produced.
ALL NOTES OFF
This message turns off all note data sent from an external
device and currently being sounded on the channel.
• Any notes being sustained using a sustain pedal or
sostenuto pedal continue to sound until the next pedal off.
RESET ALL CONTROLLERS
This messages initializes pitch bend and all other control
changes.
SYSTEM EXCLUSIVE*
This message is used to control system exclusives, which are
tone fine adjustments that are unique to a particular machine.
Originally, system exclusives were unique to a particular
model, but now there are also universal system exclusives
that are applicable to machines that are different models and
even produced by different manufacturers.
The following are the system exclusive messages supported
by this keyboard.
■ GM SYSTEM ON ([F0][7E][7F][09][01][F7])
GM SYSTEM ON is used by an external machine to turn on
this keyboard’s GM system. GM stands for General MIDI.
• GM SYSTEM ON takes more time to process than other
messages, so when GM SYSTEM ON is stored in the
computer it can take more than 100msec until the next
message.
■ GM SYSTEM OFF ([F0][7E][7F][09][02][F7])
GM SYSTEM OFF is used by a computer to turn off this
keyboard’s GM system.
649U-E-057A