I'd like to mention here excellent (free, opensource) tutorial for drums: DrumPatterns, by Gilles Lamiral You can try it on line, and download for easy use at home. Written in perl. Works with Apache and generates MIDI files. There is a documentation in english language. http://www.linux-france.org/prj/drumpatterns/index-en.html -- Odile Bénassy, "http://perso.magic.fr/obenassy/"