Either I can't listen to music when I'm too angry to sleep, or it has never occurred to me to try, or both. Probably both. It seems like all I can do is wait until sheer exhaustion takes it and me away. Among the most frustrating feelings on earth or under heaven, to be sure. But after pondering your question, I promise that the next time I am too angry to sleep, I will take three deep, slow breaths, and then I will put on the headphones and listen to Heiliger Dankgesang eines Genesenen an die Gottheit, in der lydischen Tonart, which is the third movement from Beethoven's String Quartet No. 13 in A minor, Opus 132 (1825). It's just possible that that music would smooth away my rage, let me let go of it. It also happens to be the music I want played at my funeral.