"Xanadu" is a song by the Canadian rock band RUSH from their 1977 album A Farewell to Kings. It is approximately thirteen minutes long, beginning with a six-minute-long instrumental section, then transitioning to a narrative written by Neil Peart, inspired by the Samuel Taylor Coleridge poem Kubla Khan.
“The Camera Eye,” from its Moving Pictures album, is a two-part, 11-minute piece from RUSH about city life, past and future – utopia, struggle, and surveillance, focusing on New York City and London.
"Cygnus X-1" is one of RUSH's signature multi-part songs. The first part, "Book I: The Voyage", is the last song on the 1977 album A Farewell to Kings, and the second part, "Book II: Hemispheres", is the first song on the following album, 1978's Hemispheres. Book I clocks in at ten minutes and twenty-five seconds long (10:25), and Book II is eighteen minutes and eight seconds (18:08): NOT for the faint-hearted! Listen, if you dare...