itch.io

that's a really good point. my musical knowledge is pretty lackluster so I used the term 'tone' with no idea how that would actually sound in a game, and so I'm not surprised to hear that it probably sounds pretty bad. I think using two notes (or one note and silence) is more than fine, but if others want to weigh in and agree or disagree they are encouraged to do so!

I personally don't see anything wrong with this, as long as there are only one or two tones locked to the state of the pixel.