Kind of pointless, which would make it MPSIMS, but it’s about a song, so it goes in CS.
I ran across a copy of December of Cambreadth (lyrics here.) It’s a parody of one of my favorite filks, March of Cambreadth (lyrics here). It’s on the album Roundworm, which I had to order, post-haste.
End of pointlessness; I now return you to your regularly scheduled browsing.