Hey, thanks! That was very comprehensive and informative. ...but Kevin Kofler also wrote: > If you need only MIDI, you can set up JACK to use the dummy input/output > drivers, then you can continue to use PulseAudio. Wanna tell me how to do this? Do I turn on Jack and there find something called Dummy Input Driver and Dummy Output Driver that I connect my application to? - And I was fooling around a while back with MIDI and also discovered a number of other things, like: - A kernel module or port (?) called 'MIDI Through' - Kernel modules called snd-seq-virmidi and snd-virmidi Are these what you are talking about? Do they do what I want? How do I use them? When I tried, I got absolutely not a peep.