When I play a MIDI keyboard, it triggers the envelopes but the oscillator...

When I play a MIDI keyboard, it triggers the envelopes but the oscillator pitch doesn't change.

Check 'Key Off/Xpose' (Row 7, knob 8). If it is OFF, MIDI notes will not affect the oscillator pitch. This knob also transposes the MIDI range by +/- 3 octaves.

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