I like the use of the major chord to put the player at ease while playing. There are two things I think should be changed in a future version though:
First, we need a way to consciously change the angle at which the ball is bouncing. Most of the time the ball just goes on its merry way regardless of where it hits the paddle, and at one point I somehow ended up with it going almost straight up and down, and suicided just so I could finish the level.
Second, sometimes the collision detection seems to go wonky, where the ball will hit a brick and then shoot off in an apparently random direction, rather than bouncing in a way that makes sense. I've coded Breakout on my calculator before, so I know it can be a pain, but working with this many pixels on screen should make it easier to use the current direction of the ball to figure out which way it should bounce.
Those points aside, the game was smooth, and I liked the sense of humour in the level descriptions. I made it to "how are you even doing this?" before losing my focus.