Perhaps I should get a cheap MIDI controller and some other MIDI hardware, and try to improve FreeBSD support for MIDI? riff.no have cheap MIDI keyboards, like the Korg K25.
other examples:
M-Audio Keystation 49e, Evolution eKeys, Alesis Photon 25,
Moro MC
http://moromc.dyndns.org/article.php?story=20060413220117648