Thanks for a Mac version! (it's what got me to play your game)
Neat concept, reminds me of bloxors. The level design feels pretty good, although I found myself sort of just moving the cube around until it worked. Perhaps adding a way to "die" (pun not intended) if you do something wrong, such as take too many moves or show a particular face, would add stakes.
I like the cube-orientation shower in the bottom right, but perhaps colouring the edges of the die would be a more natural way of showing which face is in which direction. Also, it's good you included animations for the die turning, I liked that.
Nice job making a piece of music during the jam! That's cool. (I have a bit more of a background in music production than developing games so maybe I can provide some tips here.)
- Some variation on the drums would be nice. I don't know what DAW program you're using, but you should be able to vary the velocity or which sample you use to give some variety, maybe pushing the drums into the background with some reverb/making them softer/quieter would be nice.
- Since this piece loops, it might be a good idea to have the piece completely developed (ie. not bringing in the synth or strings in later, but having them at the beginning). A little intro would be fine, but as it is, I think this makes the loop a little awkward.
- String samples are really hard to make sound good (I know from experience), so one tip I have is to make the instrument get a little bit louder and quieter during each musical phrase (not necessarily each note) using volume automation to make it rise and fall gradually(or changing the velocity). It might take some experimentation to get it to sound better. It sounds a little like the string instrument patch you chose to use is meant to be a whole section of strings--I might recommend having multiple instrument string patches and layering them instead to see what that sounds like.
- Some reverb overall would help the piece be a bit more cohesive.
Again, it's really cool that you made a piece during the jam! (And sorry about the essay lol)