Auditorium is a gorgeous musical puzzle - Time Waster
The audio containers each represent a different piece of the music, and they get louder the more you fill them up with flow. To clear a level, you need to max out all of your containers, which brings the song together. There are multiple ways to solve each level -- right now, there are 3 acts, with 5+ levels each, and 20 total acts are being planned. Once you get into some of the more complex levels, you have to deal with multicolored flow, and even containers that need more than one color to fill up. It's challenging, but the freeform gameplay gives it good replay value.