Download: http://archive.info-mac.org/gst/snd/mu-sing-104.hqx
MuSing is a beat generation program designed to produce striking, purely
original rhythms. MuSing uses the powers of evolution to grow families
of beats; you choose the best in the family to spawn a new generation.
Everything you create is entirely original - there are no prefabricated
beats or patterns!
Website: http://www.geneffects.com