■MIDI implementation

Model SC-88 Pro Version 1.00 '96.9

This unit implements additional functionality and parameters over and above the SC-88, which itself was an expansion of the GS sound source format. These functions and parameters are marked by a [Pro] symbol. If MIDI messages marked by a [Pro] symbol are transmitted to another GS format sound source or to the SC-88, those messages may not be recognized. Also, functions and parameters which were added to the SC-88 over and above previous GS format sound sources are marked by an [88] symbol.

Section 1. Receive data

■Channel Voice Messages

●Note off

Status

2nd byte

3rd byte

8nH

kkH

vvH

9nH

kkH

00H

n = MIDI channel number

:

0H-FH (ch.1-ch.16)

kk = note number

:

00H-7FH (0-127)

vv = note off velocity

:

00H-7FH (0-127)

*For Drum Parts, these messages are received when Rx.NOTE OFF = ON for each Instrument.

*The velocity values of Note Off messages are ignored.

●Note on

Status

2nd byte

3rd byte

 

 

9nH

kkH

vvH

 

 

n = MIDI channel number

:

0H-FH (ch.1-ch.16)

kk = note number

 

:

00H-7FH (0-127)

vv = note on velocity

 

:

01H-7FH (1-127)

❍Modulation (Controller number 1)

Status

2nd byte

3rd byte

 

 

BnH

01H

vvH

 

 

n = MIDI channel number

:

0H-FH (ch.1-ch.16)

vv = Modulation depth

 

:

00H-7FH (0-127)

*Not received when Rx.MODULATION = OFF. (Initial value is ON)

*The resulting effect is determined by System Exclusive messages. With the initial settings, this is Pitch Modulation Depth.

❍Portamento Time (Controller number 5)

Status

2nd byte

3rd byte

 

 

BnH

05H

vvH

 

 

n = MIDI channel number

:

0H-FH (ch.1-ch.16)

vv = Portamento Time

 

:

00H-7FH (0-127), Initial value = 00H (0)

*This adjusts the rate of pitch change when Portamento is ON or when using the Portamento Control. A value of 0 results in the fastest change.

❍Data Entry (Controller number 6, 38)

Status

2nd byte

3rd byte

BnH

06H

mmH

BnH

26H

llH

n = MIDI channel number : 0H-FH (ch.1-ch.16) mm, ll = the value of the parameter specified by RPN/NRPN mm = MSB, ll = LSB

❍Volume (Controller number 7)

Status

2nd byte

3rd byte

BnH

07H

vvH

*Not received when Rx.NOTE MESSAGE = OFF. (Initial value is ON)

*For Drum Parts, not received when Rx.NOTE ON = OFF for each Instrument.

●Polyphonic Key Pressure

Status

2nd byte

3rd byte

 

 

AnH

kkH

vvH

 

 

n = MIDI channel number

:

0H-FH (ch.1-ch.16)

kk = note number

 

:

00H-7FH (0-127)

vv = key pressure

 

:

00H-7FH (0-127)

*Not received when Rx.POLY PRESSURE (PAf) = OFF. (Initial value is ON)

*The resulting effect is determined by System Exclusive messages. With the initial settings, there will be no effect.

●Control Change

n = MIDI channel number

:

0H-FH (ch.1-ch.16)

vv = Volume

:

00H-7FH (0-127), Initial Value = 64H (100)

*Volume messages are used to adjust the volume balance of each Part.

*Not received when Rx.VOLUME = OFF. (Initial value is ON)

❍Pan (Controller number 10)

Status

2nd byte

3rd byte

 

 

BnH

0AH

vvH

 

 

n = MIDI channel number

:

0H-FH (ch.1-ch.16)

vv = pan

 

 

:

00H-40H-7FH (Left-Center-Right), Initial Value

=40H (Center)

*For Rhythm Parts, this is a relative adjustment of each Instrument's pan setting.

*Not received when Rx.PANPOT = OFF. (Initial value is ON)

*When Rx.CONTROL CHANGE = OFF, all control change messages except for Channel Mode messages will be ignored.

*The value specified by a Control Change message will not be reset even by a Program Change, etc.

❍Expression (Controller number 11)

Status

2nd byte

3rd byte

BnH

0BH

vvH

❍ Bank Select (Controller number 0, 32)

[88]

n = MIDI channel number

:

0H-FH (ch.1-ch.16)

vv = Expression

:

00H-7FH (0-127), Initial Value = 7FH (127)

 

 

Status

2nd byte

3rd byte

BnH

00H

mmH

BnH

20H

llH

n = MIDI channel number

:

0H-FH (ch.1-ch.16)

mm = Bank number MSB

: 00H-7FH (GS Variation number 0 - 127), Initial

 

 

Value = 00H

ll = Bank number LSB

:

00H - 03H (MAP), Initial Value = 00H

*Not received when Rx.BANK SELECT = OFF. "Rx.BANK SELECT" is set to OFF by "Turn General MIDI System On," and set to ON by "GS RESET." (Power-on default value is ON.)

*When Rx.BANK SELECT LSB = OFF, Bank number LSB will be handled as 00H regardless of the received value. However, when sending Bank Select messages, you have to send both the MSB (mmH) and LSB (llH, the value should be 00H) together.

*Bank Select processing will be suspended until a Program Change message is received.

*The GS format "Variation number" is the value of the Bank Select MSB (Controller number 0) expressed in decimal.

*This unit recognizes the Bank Select LSB (Controller number 32) as a flag for switching between the Native MAP,SC-88MAP and the SC-55MAP. With a Bank Select LSB of 00H, the map selected by the front panel SC-88MAP or SC-55MAP button will be selected. With a LSB of 01H, the SC-55MAP will be selected. With a LSB of 02H, the SC-88MAP will be selected.

With a LSB of 03H, the Native MAP will be selected.

*Some other GS devices do not recognize the Bank Select LSB (Controller number 32).

*This adjusts the volume of a Part. It can be used independently from Volume mes- sages. Expression messages are used for musical expression within a performance; e.g., expression pedal movements, crescendo and decrescendo.

*Not received when Rx.EXPRESSION = OFF. (Initial value is ON)

❍Hold 1 (Controller number 64)

Status

2nd byte

3rd byte

 

 

BnH

40H

vvH

 

 

n = MIDI channel number

:

0H-FH (ch.1-ch.16)

vv = Control value

 

:

00H-7FH (0-127)

* Not received when Rx.HOLD1 = OFF. (Initial value is ON)

❍Portamento (Controller number 65)

Status

2nd byte

3rd byte

 

 

BnH

41H

vvH

 

 

n = MIDI channel number

:

0H-FH (ch.1-ch.16)

vv = Control value

 

:

00H-7FH (0-127) 0-63 = OFF, 64-127 = ON

* Not received when Rx.PORTAMENTO = OFF. (Initial value is ON)

188

Chapter 8. Appendix