Released on; Atari 8 bit and BBC Micro in 1985 and Atari ST in 1986.
Text taken from this page on the Llamasoft web site:
This was the next major evolution of the lightsynth. The Atari machine had a much more extensive palette than the Commodore machines, plus you could make all kinds of interesting screen modes using the Display List Interrupt system, so it seemed like a natural machine to develop a next-generation lightsynth on. I still used the same basic algorithm as Psychedelia, but introduced a lot more colour variation, and colour cycling… (continued on Llamasoft web site)