PS: The only issue now seems to be, that Qtractor doesn't support individual MIDI IOs or that I don't know what to do, to get individual ports. This already is an annoyance for me, when not using AT1. A quick test, Qtractor MIDI out connected to AT1 MIDI in (AT1 audio wasn't connected) showed, that AT1 receives in omni mode. :( So I at least need to add a MIDI filter between Qtractor and AT1. Is there a lightweight command line filter that can filter out the MIDI events of a single channel? _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user