Tracker-based music has been instrumental in providing the audio component of demos since the early 90's. Always limited by the processing power and memory of the machine, creating these types of tracks is a challenge and an artform. Andrew will present some of the history and development of this unique form of "programmed" music: from the early days of .MOD files, through modern programs such as Buzz. Andrew will also engage in some live tracking demonstrations, with modern tools, to show how the methods can be invaluable in creating professional, CD-ready tracks.