Note: I made version 0.2.1 available on my website during the judging period for the game jam. I added the following to the description on itch.io (which had the older version):
UPDATE: It appears that a change I made at the last minute broke the ability to get the second piece of music. If you care about seeing what exactly I got in on time, you can play the version here (the tune is in one of my comment replies on the submission page); but if you want to actually experience (something a bit closer to) what I was going for, you can play the fixed version on my website (with the knowledge that there is one small-but-important change there I didn't get in on time). (I hope I did the right thing here...)
Oh, and I forgot to put the controls in the description. Arrow keys and Z, or WASD and J.