Are you going to add support for FM Synth? (To make up for Master System having sound capabilities inferior to NES's.)
I don’t quite understand what we’re talking about, but there aren’t so many sounds in the original BC that SMS couldn’t handle them.
There was a sound expansion for the Master System, which gave it sound capabilities that are better than what Famicom had.
Makes sense if you won't add support for it in your homebrew, as it was never released outside Japan.