Gave up at the avoidance. I didn't really give it much of a go, so it's nothing bad (I actually liked the song pick + visuals a lot), they're just not my thing and something I don't care to spend time learning.
I thought it was a charming game that was fun, though it had quite a few flaws:
-The songs in the game are at such inconsistent volumes. Honestly some of these were ear-splittingly louder than others. Not only that but some of the songs are very short which means there's a lot of fading in and fading out.
-Save difficulty and save length varied wildly. Some saves in the last world that I played were as easy as in the first, and vice versa. I suppose overall the third level was harder than the first, but there's not much in it really, it was very inconsistent.
-Some screens were just full of moving images, flashing lights, animated sprites etc. It was just very cluttered and distracting, in the world before the avoidance particularly. Also vines are hard t see with the first world's tileset.
I liked it though. You have a nice style.