Casio CTK-3500 User Manual download pdf (Page 4)

Part I

MIDI Message Overview

1 Product Conﬁguration as a MIDI Device

As a MIDI device, this Instrument consists of the Performance Controller Section and Sound Generator

Section described below. Each of these sections can send and receive speciﬁc MIDI Messages in accordance

with its function.

1.1 Performance Controller Section

The Performance Controller Section performs keyboard play and controller operations, and generates

performance messages in accordance with auto play, etc. Basically, generated performance messages are

sent to external destinations while also being transmitted to the Sound Generator Section. The channel

numb er of the sent channel message is in accordance with the Instrument’s instrument part numb er.

MIDI Output Performance Information The following describes the performance information

that is output and is not output as MIDI signals.

• Output performance

– Keyboard play and controller operations by the musician

– Auto accompaniment

• Non-output performance

– Demo Songs

– Song playback

– Lesson function

– Dance Music playback

1.2 Sound Generator Section

The Sound Generator Section mainly performs receive of performance information and sound source

setting information. It consists of a common part that does not depend on the channel and a musical

instrument part that is independent of each channel.

1.2.1 Sound Generator Common Block

The common block consists of system eﬀects, mixer master control, etc. A number of the parameters of

these items can be controlled by universal system exclusive messages.

1.2.2 Instrument Part Block

The instrument part section consists of a total of 32 instrument parts, divided into two groups, named

Group A and Group B of 16 instruments each. Each part can perform operations and setting changes

using channel messages. Only Group B can be controlled by external channel messages.

As shown in the following table, there is a ﬁxed relationship between channel message receive channel

numb ers and instrument parts.

1 2 3 4 5 ... 21

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Casio CTK-3500 User Manual Page 4