Arduino music box flip-n-shake/tap

Yeah! Another good excuse to eat a whole box of chocolate. What?! I need this very box for a project. I therefore, must empty this box!! XD

I had that box of chocolate for a while. Ate it, filled it with pop corns for some time. Left it empty on the counter for a while. Eventually managed to fill it with electronics, which is pretty much what happens to any box when it ends up in my apartment XD