Kunst Der Fuge, meaning Art of the Fugue, was composed by J.S. Bach and numbered BWV 1080. It was Bach's last composition before his death in 1750.
Very short part of the full Contrapunctus 1, and the last part sounds very strange, but meh lol. Only has 3 parts, so its not a quartet part in this arrangement. Its really hard to do anything with the Scratch music blocks, they are not notes but numbers :/