This is a light synthesiser, the followup to Psychedelia on the 8-bit machines and the predecessor to Trip-A-Tron on the ST, which continues to sell well. Colourspace is described by Jeff as follows "The basic idea is simple: the light-synthesiser is an 'instrument' which produces dynamic patterns and colour sequences under the direct control of the operator. The lightsynth is generally used in conjunction with music; it's nice to sit down and mellow out with your favourite sounds and use the lightsynth