With a SID? No problem. I think the title track could be arranged very easily for three voices.
You can do amazing things with only a single SID channel. One of the most impressive examples is the in-game music of Hawkeye [1] which allows to use the remaining two channels for sound effects.
[1] https://youtu.be/es-rWnVSJ1c
Even the PC speaker version is pretty good, so I would absolutely second this.
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You can do amazing things with only a single SID channel. One of the most impressive examples is the in-game music of Hawkeye [1] which allows to use the remaining two channels for sound effects.
[1] https://youtu.be/es-rWnVSJ1c