So it really does exist. The 14-minute "Carnival of Light" track, long the stuff of Beatles legend, will finally see the light of day, according to Paul McCartney, who says he's always been fond of the experimental noodling "because it's the Beatles free, going off piste." The track is said to feature distorted electric guitars, discordant sound effects, a church organ, and gargling sounds, as well as McCartney and John Lennon screaming phrases like "Barcelona" and "Are you all right?" McCartney says the Beatles didn't release the track when they recorded it in 1967 because its avant-garde experimentation, described as inspired by musique concrète composer Karlheinz Stockhausen, was too adventurous for mainstream audiences at the time. - EW.comDid I just say unreleased Beatles track?