Am 08.09.19 um 14:25 schrieb Gerhard Zintel: > My feeling is that setBfree is not capable to play MIDI files by its own?! thus > I was looking for a simple jack-aware MIDI file player sending its output to > Jack to be routed to setBfree. https://github.com/jerash/jpmidi You can also just drag MIDI files into Carla. Hth, Chris