Hey, Just to say, I think this is mainly related to Lin-Audio-Dev, so I wont be sending to lin-user in furthur replies.. And on the topic for a second, python bindings exist for MidiDings, a module that can use both AlsaSeq & Jack Midi. I have a very limited amound of experince with it, as i found the AlsaSeq python package to be much simpler to use. (It does however not support Jack Midi.) Might i suggest to use AlsaSeq first if this is your first Python/Midi project, despite there only being a few demos/tutorials for AlsaSeq, its a great way to get acces to the Alsa Sequencer. AlsaSeq also has a "Helper-Module", called alsamidi, which helps creating messages in a generic & easy way without getting your hands dirty in Midi bytes, commands & the likes. (it comes with the AlsaSeq tarball, so you'll get it automatically.) Cheers, -Harry