> Hmmm so the fact that I see xruns in jack and that I hear > lags in MIDI recording are not related to each other? Wow, > interesting. Then what handles MIDI - is that Alsa then? Yes, it's the ALSA sequencer. It's a bit confusing: qjackctl offers a MIDI connection patchbay, but currently this has nothing to do with JACK. > Still beginner questions, I assume. Sorry for that... You're welcome. Best regards ce