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NOTE:

*1 By default (factory settings) the PSR-270 ordinarily functions as a 16- channel multi-timbral tone generator, and incoming data does not affect the panel voices or panel settings. However, the MIDI messages listed below do affect the panel voices, auto accompaniment, and songs.

•MIDI Master Tuning

•System exclusive messages for changing the Reverb Type, Chorus Type, and DSP Type.

The Remote Channel can be designated by using Function parameter #81. The messages received over the set channel are handled in the same way as key data received from the PSR-270 itself. The following messages can be received over the designated channel set in this Function parameter; all other messages will be ignored.

•Note ON

•Note OFF

•Control change : Bank select MSB, LSB (Main Voice Only), Modulation, Volume, Expression, Sustain, All sound off, All note off

•Program Change (Main Voice Only)

•Pitch Bend

*2 Messages for these control change numbers cannot be transmitted from the PSR-270 itself. However, they may be transmitted when playing the accompaniment or using the Harmony effect.

*3 Exclusive

<GM System ON> F0H, 7EH, 7FH, 09H, 01H, F7H

•This message automatically restores all default settings for the instrument, with the exception of MIDI Master Tuning.

<MIDI Master Volume> F0H, 7FH, 7FH, 04H, 01H, ll, mm, F7H

•This message allows the volume of all channels to be changed simulta- neously (Universal System Exclusive).

•The values of “mm” is used for MIDI Master Tuning. (Values for “ll” are ignored.)

<MIDI Master Tuning> F0H, 43H, 1nH, 27H, 30H, 00H, 00H, mm, ll, cc, F7H

•This message simultaneously changes the tuning value of all channels.

•The values of “mm” and “ll” are used for MIDI Master Tuning.

•The default value of “mm” and “ll” are 08H and 00H, respectively. Any values can be used for “n” and “cc.”

•This is used for saving (recording) User data (User songs, User One Touch Setting, and EZ Chord).

<Internal Clock, External Clock> (Receive Only)

F0H, 43H, 73H, 01H, 02H, F7H (Internal Clock)

F0H, 43H, 73H, 01H, 03H, F7H (External Clock)

• These messages control the clock setting for the accompaniment.

<Reverb Type> F0H, 43H, 1nH, 4CH, 02H, 01H, 00H, mmH, llH, F7H

•mm : Reverb Type MSB

•ll : Reverb Type LSB

Refer to the Effect Map (page 116) for details.

<Chorus Type> F0H, 43H, 1nH, 4CH, 02H, 01H, 20H, mmH, llH, F7H

•mm : Chorus Type MSB

•ll : Chorus Type LSB

Refer to the Effect Map (page 116) for details.

<DSP Type> F0H, 43H, 1nH, 4CH, 02H, 01H, 40H, mmH, llH, F7H

•mm : DSP Type MSB

•ll : DSP Type LSB

Refer to the Effect Map (page 116) for details.

<DRY Level> F0H, 43H, 1nH, 4CH, 08H, 0mH, 11H, llH, F7H

•ll : Dry Level

•0m : Channel Number

*4 It is possible to switch between External and Internal Clock.

*5 When the accompaniment is started, an FAH message is transmitted. When accompaniment is stopped, an FCH message is transmitted. When the clock is set to External, both FAH (accompaniment start) and FCH (accompani- ment stop) are recognized.

No MIDI messages can be received or transmitted in the Song mode.

MIDI IMPLEMENTATION CHART

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Yamaha Portatone, PSR-270 manual 115

Models: Portatone PSR-270

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