A fairly straightforward jig in D major. The only oddball bits are that it's heavy on the IV, with the B part being in G lydian for four bars.
For anyone curious about what happened to 8-11, they're written, but I've been sick for a few days and haven't had a chance to record them because it's difficult to sing when you're feeling nauseous. :( I'm doing my best today, though. I've also finished writing #13, and have a few different lyric ideas left to finish #14, hopefully with time to spare.
Apologies for the noise in the video being louder than usual.