Comment Comment by a_gopher aka Sinclair ZX81. There was such a program in Your Computer that would toggle between fast and slow mode to generate tones. It was a actually a trivial 8 or 16 step tracker, so you could even make beats...And here's the program listing!https://archive.org/details/your-computer-magazine-1982-03/p... parent a_gopher 5 years ago
And here's the program listing!
https://archive.org/details/your-computer-magazine-1982-03/p...