Always nice to see someone use the Love 2D engine.

I really like the concept of this game, there is a lot of interesting stuff this can be expanded into. Nice use of different audio clips on the nodes to make a melody. The UI and gameplay is nice and smooth, but it did take me a little while before I noticed the line drawn to a node didn't control the direction it played the wave in.

Nice work!

Wow, my game is called Pulse too; What are the odds? I really liked your game though, especially the mood. I found myself clicking at random a bit, and not thinking much about the puzzle aspect, but that is a problem with level design with which I can empathize. If you add more levels after the voting, I'd love to play them. Overall though, it was innovated, the sound design was excellent and I love the mood. Great game!