User:SOTO/Forum Archive/The Panopticon/@comment-1153219-20130321200321/@comment-1153219-20130330142312

"Tick Tock" is part of the plot while "I am the Doctor" is from the soundtrack. It is part of the story, in the sense that they bring up different tracks and tunes for different occasions, but "Tick Tock" actually weaves the story together in a way.