Very useful info I had no idea about sound tests thank you, I will give it a try.
The music is for Nemesis, and if I tell you I am halfway through amigaizing the graphics for level 1 of Nemesis I think you can guess where this is going[very slowly]
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And yes it is a Yamaha chip but luckily not the rubbish one from the Spectrum or Atari ST abominations
