Command 0x27: Pitch bend (round trip)

Sets a pitch bend that goes back and forth the same number of times.

Syntax

0x27, byte delay, byte interval, byte count, sbyte delta

Parameters

Parameter	Type	Description
delay	byte	Time until the first change
interval	byte	Interval between changes
count	byte	Number of changes in one direction
delta	sbyte	Pitch change per step

Description

Makes the same setting as command 0x08 with reverse set to count and count set to count × 2.
The pitch falls by delta for the first count changes, then rises by delta for the next count changes, returning to the original pitch.

For details of pitch bend behavior, see command 0x08.

This command takes no time to process; the following event is read within the same tick.

Note

count × 2 is calculated in 8 bits, so if count is 128 or more, the total number of changes will be wrong.