Midica

MIDI and Karaoke player and file analyzer and interpreter for MidicaPL music programming language.

KaraFun

KaraFun is the best online karaoke. Over 35,000 karaoke songs, with studio quality, at home or on the go. Regular updates. Free demo!

PyKaraoke is a free karaoke player for Linux, FreeBSD, NetBSD, Windows, OSX and GP2X.

Brazilian karaoke program which opens the most used karaoke files like MIDI, KAR, MK1.