In celebration of the 50th anniversary of Led Zeppelin's fifth album, 1973's Houses Of The Holy, Jimmy Page treated fans to “The Seasons” — a piece of unreleased music originally intended to open the album. The guitar-based tune was intended to serve as an overture to the album, but instead was destined to serve as the basis of the album's classic, “The Rain Song.”
Jimmy Page posted a note to fans on his YouTube page under the recently unveiled music, which reads in full:
My original idea for the opening tracks for Houses Of The Holy was that a short overture would be a rousing instrumental introduction with layered electric guitars that would segue in to “The Seasons,” later to be titled “The Rain Song.” Again there would be a contrasting acoustic guitar instrumental movement with mellotron that could lead to the first vocal of the album and the first verse of the song.