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Instrument-specific system exclusive messages, Part iv, 20 format – Casio CTK6000 User Manual

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Part IV

Instrument-Specific System Exclusive
Messages

20

Format

This section explains the format of the Instrument-specific System Exclusive Messages. See “V Parameter
List” and “VI Parameter Set List” for information about how parameter sets actually are transferred.

20.1

Message Classifications

Basically, the operation that corresponds to Instrument-specific system exclusive messages is parameter
data transfer.

The following operations can be performed from an external device using this parameter transfer

message.

Modification of an individual Instrument parameter

Batch modification of a particular Instrument parameter set

Import of an individual Instrument parameter value

Batch import of a particular Instrument parameter set

In addition to parameters being used as device setting values, some parameters act as commands

when received by the Instrument and as device status information when sent from the Instrument.

The following table shows the parameter category for each type of transfer.

Function Section

Parameter Category

Description

System

System

Commands to the Instrument, Instrument stats

All

All user data

Performance Controller

Scale Memory

User Scale Memory

Sequence

Song Sequencer

Registration

Registration

Rhythm

User Rhythm

Sound Generator

Patch

Sound source common settings (system effects, mas-
ter settings, etc.) Instrument part settings (tone se-
lection, mixer channel setting, tuning, etc.)

Tone

Tone Setting, Drawbar Organ Setting, Modulation
Setting

DSP

DSP Parameter Setting

20.2

Basic Message Structure

Instrument-specific system exclusive message operation can be broadly divided between two methods:
Individual Parameter Transfer (single parameter send/receive) and Bulk Parameter Set Transfer (batch
parameter send/receive). Each method includes a number of different messages.

The field in the system exclusive message that specifies the message type is the action (act ) field.

The format of the body part of the message depends on the act value.

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