For a moment I thought you were referring to programs that react to sound fed through the ear port such as this one made by Woody a long time ago:
But then I remembered you may be referring to 128K software that draws lines and patterns in different colours while playing an AY tune. Haven't seen those in a while. :)
I seem to remember a program like that on one of the cover tapes, but which tape from which magazine, I can't help you with! I've got a feeling it was a Sinclair User tape and it was more than likely after the ELSPA stuff that forced them to cut down on the free games.
But then I remembered you may be referring to 128K software that draws lines and patterns in different colours while playing an AY tune. Haven't seen those in a while. :)
Sounds like you're referring to Busysoft's Song In Lines series. (And the somewhat similar Fuxoft Soundtrack demos - I think one of those made it onto an SU covertape)
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But then I remembered you may be referring to 128K software that draws lines and patterns in different colours while playing an AY tune. Haven't seen those in a while. :)
I seem to remember the same thing, wasn't it called something like kaleidoscope?
Sounds like you're referring to Busysoft's Song In Lines series. (And the somewhat similar Fuxoft Soundtrack demos - I think one of those made it onto an SU covertape)