Crab Waltz, by Toby “Radiation” Fox, is featured in one of the OpenBound Flash animations in Homestuck. It’s one of the few tracks so featured that has not yet been released on an official album.

I really like the direction of this one. It’s as though Karkat burned up all of his energetic vitriol too fast, and now he’s just moping around the meteor, looking for people to bother.