Hi Julien, The easiest way right now is to use my old alsaseq bridge: http://konstruktiv.org/files/software/jackmidi_alsaseq-0.3.tar.bz2 There's a patch for jack to add rawmidi driver to alsa backend: http://boudicca.tux.org/hypermail/jackit-devel/2007-Jan/0065.html I'm slowly finishing alsaseq version of a driver and will announce when it will be ready (RealSoon(tm) I hope). Feel free to write if you have any problems. Regards, Dmitry.