The Dark Side of the Moon is Pink Floyd's ninth album and is a single extended piece rather than a collection of songs. It seems to deal primarily with the fleetingness and depravity of human life, hardly the commonplace subject matter of rock. "Time" ("The time is gone the song is over"), "Money" ("Share it fairly but don't take a slice of my pie"), and "Us And Them" ("Forward he cried from the rear") might be viewed as keys to understanding the meaning (if indeed there is any definite meaning) of The Dark Side of the Moon.

Even though this is a concept album, a number of the cuts can stand on...