Boss Audio Systems GT-6B User Manual

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Chapter 10 Using MIDI
What Can You Do with MIDI?
You can perform the following operations using MIDI with 
the GT-6B.
* The use of MIDI requires that the MIDI channels of the 
connected devices match. If the MIDI channel settings are not 
correct, the GT-6B will be unable to exchange data with other 
MIDI devices.
Operating From the GT-6B
Outputting Program Change Messages
When a patch is selected on the GT-6B, a Program Change 
message corresponding to the patch number is transmitted 
simultaneously. The external MIDI device then switches its 
settings according to the Program Change message it receives.
fig.10-01
Outputting Control Change Messages
Data describing the actions of the CTL pedal, expression 
pedal, expression pedal switch, and external devices 
connected to the SUB EXP PEDAL/SUB CTL 1,2 jack are 
output as Control Change messages. Such messages can be 
used to (among other things) manipulate the parameters of 
an external MIDI device.
MIDI Start/Stop, MMC Play/Stop
MIDI Start/Stop or MMC Start/Stop messages are output 
when the CTL pedal, the expression pedal, the expression 
pedal switch, or the external device connected to the SUB 
EXP PEDAL/SUB CTL 1,2 jack is operated, allowing you to 
control the performance of the external MIDI device.
Transmitting Data
You can use Exclusive messages to transmit the settings for 
effect sounds and other content stored in the GT-6B to other 
MIDI devices. For example, you can provide another GT-6B 
with the same settings, and save effect sound settings to a 
sequencer or other device.
Controlling the GT-6B Remotely From 
an External MIDI Device
Switching Patch Numbers
When the GT-6B receives Program Change messages from 
the external MIDI device, the corresponding patches are 
switched simultaneously.
You can set the correspondence between MIDI Program 
Change messages and the GT-6B’s patches using the 
Program Change Map (p. 69). Make these settings when 
you create correspondences for effect sounds with other 
MIDI devices.
The connections shown in the figure below are for a 
sequencer automatically performing the backing as a bass is 
being played. The patches are switched automatically when 
the program numbers corresponding to the patches are input 
along with the performance data at the points where you 
have determined the GT-6B patches are to be switched.
fig.10-02
Receiving Control Change Messages
You can control specified parameters during a 
performance through Control Change messages received 
by the GT-6B. Parameters to be controlled are set with 
Pedal Assign (p. 46).
Receiving Data
The GT-6B can receive data transmitted from another GT-6B, 
as well as data that’s been stored on a sequencer.
MIDI OUT
MIDI IN
MIDI OUT
MIDI IN