After playing on a MIDI keyboard, I change Programs and the sounds are transposed too high.
The quick fix is to hit the RESET button when the sequencer is stopped; it acts as a MIDI all-notes-off, and resets all MIDI controllers. In general, you usually want to set up Programs as sequencer-driven, MIDI-driven, or both. When you try to play a sequence-based Program with MIDI, or sequence a MIDI-based sound, you will likely have to change a couple parameters (see 1 and 2 above).
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