After hearing the two Shovel Knight songs in Battlemix that were not properly looped, I decided to make my own loops of the two. Then I felt that I shouldn't stop there, and looped the other levels' music as well. Then I went further and just did the whole soundtrack.
Note that some songs are missing, as they do not loop, and song 42 is split into four parts as it has four variations.
Download HereListen to the soundtrack hereEdit 1: Added numbers to the titles in preparation for doing the rest of the soundtrack.
Edit 2: Entire soundtrack is done!