If Paul McCartney has his way, a 41-year old Beatles song will see its release. The avant garde, 14-minute jam, 'Carnival of Light,' was recorded in one take on January 5, 1967, around the time the Fab Four perfected 'Penny Lane.'

"I like it because it's the Beatles free, going off piste," McCartney told BBC Radio host John Wilson. "We were set up in the studio and would just go in every day and record."

"I said to the guys, 'This is a bit indulgent but would you mind giving me 10 minutes?'" McCartney explained. "I've been asked to do this thing. All I want you to do is just wander round all of the stuff and bang it, shout, play it. It doesn't need to make any sense. Hit a drum, wander to the piano, hit a few notes ... and then we put a bit of echo on it. It's very free."

Macca says the song very nearly made the Beatles' 1996 'Anthology' releases. "We were listening to everything we'd every recorded," McCartney added. "I said it would be great to put this on because it would show we were working with really avant-garde stuff ... But it was vetoed. The guys didn't like the idea, like 'This is rubbish.'"

This is one of the few times we'd have to disagree.