In this post, I featured a video by the C.C.H.S. Trombone Choir and I said I didn't have any idea what the "C.C." stands for. Well, I do now. Reader-of-this-site Michael Draine writes that it's the Concord-Carlisle High School in Massachusetts. He says, "That's the high school I briefly attended, and dropped out of. I haven't heard of the Trombone Choir before, though I live one town over from Concord." Boy, you people know everything.