Taking advantage of the formulaic nature of electronic dance music, an Australian developer has created
a box which automatically composes plausible trance music. Known as Infinite Horizon, the box creates five channels (Chord, Lead 1, Lead 2, Bass 1 and Bass 2) of randomised patterns; the human operator controls the higher-level build-up/break-down structure by muting and activating channels.
The site has a MP3 of about 10 minutes of output; it sounds quite passable, like something out of Berlin around 1995.