I have a Yamaha DTX900 drum module that has been programmed, using MIDI, to play chords, and other note combinations, using organ or other pitched sounds, on a Yamaha MX49 keyboard, by striking a pad. I would like to add sounds, either through apps or hardware, for more layers.
In other words can my drum module be the "keyboard" controller? Will iMIDIPatchbay allow/help me to do that? Is a MIDI interface necessary to make this work?