There’s a type of music box that you can write your own songs for. It comes with these paper strips and a punch tool.
Every hole you punch represents a note, and you can play the whole song by cranking the paper through the music box.
Making songs for a music box is an exercise in constraints. It’s almost like the physical (or audio?) manifestation of pixel art. On simple boxes, you only have 15 notes to work with (two octaves on a C major scale). There’s also a physical constraint where you can’t play repeating 8th or 16th notes for a given pitch.
But despite these constraints (or maybe because of them?), you can make lovely, enchanting music. Music boxes have a way of taking normal songs and making them more nostalgic, innocent, or haunting.
Download and print the music sheet at the bottom of each page and punch out the circles, then run it through your music box.