[TheOtherHobbes]

There are any number of ways to approximate the soundwaves generated by particular instruments that work better than this.

There are also any number of ways to make cool new sounds, even using old tech. (My current favourite is Aparillo by SugarBytes, which uses FM but sounds absolutely amazing.)

This Google project seems to be a technology demonstrator made by people who seem curiously unaware of the domain they're trying to work in.

There is a lot of competition in this space and this project is doing nothing remotely new, including the ML element.

All of which might be forgivable if the sound was unbelievably awesome... but it isn't.