Kurzweil FORTE SE Musician's Manual page 29

Features of the Forte SE
Real Time Controls
Variation Button
The Variation button is located on the left side of the front panel, just above the Volume
slider. The Variation Button is a MIDI controller (default MIDI CC#29) that is programmed
in most Programs to modify the sound, such as adding a pad sound, changing the effects or
some other variation suited to changing with a switch.
For KB3 programs, the Variation Button controls the Rotary Speaker speed, switching
between slow and fast.
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