sonic-pi-net/sonic-pi ? reverse-engineered prompt

Build me Sonic Pi, a simple but powerful live coding music app where I can write code and hear sounds immediately.

I want the app to feel friendly for beginners, but still good enough for real performances. It should let me make beats, melodies, and live loops, and include a built in tutorial or help so people can learn by playing. Make it run as a full desktop app, with a clean editor and instant audio feedback, and keep it easy to use in schools as well as for artists and DJs.

Please make the whole project build cleanly from source, and if you need to check current setup details or docs, look them up online. If there are translations or platform specific pieces already in the repo, keep those working too.