QMidi runs on any Macintosh with System 7 or greater. It is fully compatible with the Classic environment of Mac OS X and with Mac OS 9.1. QMidi is is a shareware product. This means, you may copy it freely and try it out thoroughly. As soon as you decide to use the program, you are requested to send a modest amount of money.
Unregistered version has no other limitations than the annoying request at startup.
MP3 playback requires QT 4.1 or later. QMidi now supports the MOTU FreeMidi system. Completely independent mirrored karaoke window. Full screen karaoke mode. Karaoke latency compensation.