I was just listening to this. Haven't heard it before. It reminds me of some of the stuff Zappa wrote, but Zappa scored everything and could read and write music at a very high level. I'm not sure that's how AT works.
I know this is programmed using a Disklavier to play piano and stuff, but tracks like 4 and 12 are pretty musically interesting. Especially 4 which has quite a fast melody. What I want to know: did he play that into a DAW? If not how? Did he score it? Play it slowly and speed it up? Draw the notes in one by one?
I guess the magician never reveals his secrets