Comment by tuzemec

Pretty cool! It reminds me of Droplets [1].

I'm working from time to time on a similar concept. Except you can have multiple ball sources and each platform/line can play any combination of notes. [2] It's using phaser and tone.js under the hood and it's not very mobile friendly yet.

[1] - https://finneganeganegan.xyz/works/droplets

[2] - https://sounds.tuzemec.com/