I don't recall that part- graphs of music...was it sheet music? Could have been he was studying a change in time signature, or the breakdown of notes in a riff from one measure to the next...I don't know. It was recorded audio for Malignant narcissism that geddy and neil recorded while Alex was dealing with his legal trouble. Alex came in and listened to the recordings and inserted his guitar parts as he thought necessary..kinda sucks imo because if he were at the studio i think the guitar track wouldve been better than what is released