#pyxel

Be sure the Speed is set to the same number for all parts of the song. Otherwise, the sections will be out of tempo with each other when played back.

The piano roll allows notes from C1 to B5. The lowest pegs are blue. Blue pegs indicate a rest.

You have 5 wave shapes for timbre: triangle, pulse, square, sawtooth, and noise. From what I can hear, I think the triangle wave is an NES-like, stepped triangle wave instead of a perfect triangle shape. (A stepped triangle has more character to it; normal triangle waves sound very similar to sine waves otherwise.)

A Sound is a small section of the Editor where you can place notes on a piano roll sequencer. There are 6 measures per Sound. You can fit 8 pegs into one measure. You can fill a Sound with a max of 48 pegs.

There are 8 volume levels to assign each peg, labeled 0 through 7, with 0 being mute.

The Music Section is a section of the Editor where you arrange your Sounds into a complete song. There are 8 songs, labeled 0 through 7. There are 32 spots per channel to place your Sounds.

You can create 64 Sounds, labeled 00 through 63. This means that ultimately you are limited to a max of 384 measures (or 3,072 pegs) for both music and sound effects in a game.

It is clear that this is not a composing tool, but a tool you use to arrange the music to Pyxel chiptune format. I recommend composing your music on an instrument or DAW separately and then manually convert the song in Pyxel.