A while ago I posted a template for the Konami SCC MSX chip, which adds some extra waveform channels, however it wasn't very good. After some edits and close observation, I worked around the problems and made a cover with it. I'll also post the template just in case, but keep in mind that the two regular pulse channels can only play 50% squares and the DPCM and noise channels cannot play at the same time. I'd also recommend using a Namco channel if you want to have 3 square waves at the same time rather than percussion.
