Love the idea. I was thinking about creating something similar (without any knowledge on how to achieve that, I'm not a good programmer) for music creation and especially collaboration.

When writing a song with someone else, this can become really handy, as we sometimes don't know if some idea might work.

I would totally be a customer (if its not bound to a monthly payment). But as of now, it's lacking linux support (why do I have to be that special unicorn all the time?).

By the way: BandLab has something like this integrated already, but I want to use my own DAW.