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Eplaymidi
http://www.ueda.info.waseda.ac.jp/~satoshi/midi/midi-e.html
MIDI player for Linux or FreeBSD using Open Sound System
KMid
http://perso.wanadoo.es/antlarr/kmid.html
KDE-based MIDI file player for Linux and FreeBSD
srgplay/xsrgselect
http://www.geocities.com/Tokyo/Pagoda/2842/eindex.html
Srgplay plays MIDI and Recomposer files. XSrgSelect is a gtk-based front end for srgplay.
UNIX MIDI Plugin for Netscape
http://unixmidiplugin.tripod.com/
Can use but does not require Timidity.
Widi
http://www.ne.jp/asahi/i/yamahata/widi/
A Midi Player for Advanced Linux Sound Architecture(ALSA)/Open Sound System(OSS)