Yamaha MU15 Specifications download pdf (Page 74)

System Exclusive Division Type

System Exclusive MIDI Messages are custom MIDI messages that correspond to a

particular Musical Instrument Manufacturer. We can insert into a Pitch Sequence Divi-

sion System Exclusive messages. As each type of System Exclusive message is

unique to a particular manufacturer.

All System Exclusive messages contain a series of status bytes, they all start with the

universal message F0 this tells the connected instrument that a system exclusive message

has started.

This is normally followed by a series of bytes that are unique to the instrument. The

Manufacturers identification followed by the parameters you wish to control.

For Example Yamaha’s message would start as F0 43 10 4C XX XX XX XX XX XX F7.

the bytes 43 10 4C are Yamaha’s identification bytes, XX are the bytes you would wish to

control. F7 tells the instrument that you have ended the System Exclusive message. The

message below will change the master volume level of most Yamaha XG modules, includ-

ing the MU15, 50, 128 Sw1000 sound card.

F0 43 10 4C 00 00 04 7F F7

the eighth status byte message 7F message turns up the master volume level to

maximum.

we can input this data into a pitch

sequence by selecting System

Exclusive as our Division type.

The Maximum number of status bytes permitted per division is 51.

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Yamaha MU15 Specifications Page 74