Good game
I think it needs a few tweaks. Number one was the symbol thing you used for grabbing stuff, it was hard sometimes to get it to grab or realease stuff. The second thing mgiht be intended but there were times where I generated as many symbols as I could, didn't ge the piece I wanted, so I had to erase all of them, then try to get it to generate the piece again. At times I had to repeat this 2 or 3 times to get the right piece. Last thing was it felt like it took forever for a piece at the bottom to come in.
Love the music, great idea, really cool you combined a science theme into it as well. Really good piece of work.