[This library has moved to: https://github.com/vishnubob/python-midi/] Read, write, process and build MIDI streams using a high level pythonic API. Support for the ALSA sequencer provides the ability to accurately transmit and receive MIDI data.
Frontend or sc_trans, written in wxPython, built in playlist editor, and transmit button to start streaming directly from the frontend. supports freebsd and macosx, send kill signals directly from the frontend too!