The All-In-One circuit can be easily tweaked for having 4 extra switches that can be used for a sustain pedal, MIDI switches (very useful for SooperLooper!), or for sending some specific MIDI message (program change, etc.).
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The All-In-One circuit can be easily tweaked for adding upto 4 extra switches that can be used for a panic button, a sustain pedal or other MIDI switches (very useful for SooperLooper!).