This is a pretty pleasant game actually. I wouldn't say its anything outstanding or revolutionary, but it definitely let me sit through the entire game and rack my brain a little bit.
Some good things:
Outstanding art style here. The drum solo was a bit jarring but I kinda got into it after a bit. Gives it that jazzy vibe which fits well into the game actually. Love it!
Ultra simple gameplay that doesn't need to teach more than neccesary. Love it.
I also think you've done a good job optimising the physics and making sure the interactions are not as janky as they would be when dealing with mouse-control related physics. Good job! It lends itself to a pleasant playthrough.
Some caveats:
I don't really have any major criticism of the game, which is itself an impressive feat of a design. If I were to have a caveat, it would be that I am frustrated this game is not as popular as it should be (though mind you, 60 votes as of this writing is amazing!)
I 'could' suggest you to add more variety in the puzzles by having more mechanics like spikes or rotating platforms, but I think wouldn't be fair as this was made in a time constraint. And you've actually done relatively great puzzle design with your mechanics as is.
Overall, great game! Like what Blank_Slate119 mentioned, this can definitely expand into a micro game of sorts, if you grab a team together and expand on it, could work as a mobile game?