* Calling configurations/sounds via MIDI-program-change. (HW)
* Calling configurations/sounds via MIDI-program-change. (HW)
−
* External controllers (e.g. via bidirectional and self configuring USB-serial interface, so any uC can be used). (HW)
+
* External controllers (e.g. via bidirectional and self-configuring USB-serial interface (protocol-definition is neccesary!), so any uC can be used). (HW)