Yamaha PSR-330 - Manual (Page 85)

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◆ GM System Level 1
The existing MIDI protocol allows performance and other data to be transferred between different
instruments, even if they are from different manufacturers. This means, for example, that sequence data that
was originally created to control a tone generator from manufacturer A can also be used to control a different
tone generator from manufacturer B. Since the voice allocation in different devices from different
manufacturers is usually different, however, appropriate program change data must be transmitted to select
the right voices.
The General MIDI protocol was developed to minimize confusion and the need for re-programming
when playing software created by one MIDI device on another. This has been achieved by defining a
standard voice allocation in which the same or similar voices are accessed by the same program change
numbers or MIDI channels. The current standard recognized by the International MIDI Association is
known as “GM System Level 1.” The PSR-330 voice allocation complies with the GM System Level 1
standard.
MIDI Data Format
LSB
MSB
00H 01H 02H 7FH
00H NO EFFECT NO EFFECT
01H HALL1 HALL2
02H ROOM1 ROOM2
03H HALL1 HALL2
04H PLATE1 PLATE2
05H DELAY1 DELAY2
06H NO EFFECT NO EFFECT
7FH NO EFFECT NO EFFECT
Address Size Data Parameter Description Default Value
(H) (H) (H) (H)
SYSTEM 00 00 7E 1 00 XG SYSTEM ON
EFFECT 02 01 00 2 00 — 7F REVERB TYPE MSB Refer Table-2 01 (=HALL1)
00 — 7F REVERB TYPE LSB Refer Table-2 00
MULTI PART 08 nn 41 1 00 — 7F SCALE TUNING C –64 — +63 cent 40
08 nn 42 1 00 — 7F SCALE TUNING C # –64 — +63 cent 40
08 nn 43 1 00 — 7F SCALE TUNING D –64 — +63 cent 40
08 nn 44 1 00 — 7F SCALE TUNING D # –64 — +63 cent 40
08 nn 45 1 00 — 7F SCALE TUNING E –64 — +63 cent 40
08 nn 46 1 00 — 7F SCALE TUNING F –64 — +63 cent 40
08 nn 47 1 00 — 7F SCALE TUNING F # –64 — +63 cent 40
08 nn 48 1 00 — 7F SCALE TUNING G –64 — +63 cent 40
08 nn 49 1 00 — 7F SCALE TUNING G # –64 — +63 cent 40
08 nn 4A 1 00 — 7F SCALE TUNING A –64 — +63 cent 40
08 nn 4B 1 00 — 7F SCALE TUNING A # –64 — +63 cent 40
08 nn 4C 1 00 — 7F SCALE TUNING B –64 — +63 cent 40
<Table-1> Parameter Change
<Table-2> Effect map
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Other than 00H, any LSB effect type that has no effect name in its corresponding part,
will be directed to the corresponding effect type of the MSB value and LSB 00H.