On one part of the half-hour tape, John Lennon and Paul McCartney repeatedly collapse in laughter as they try to complete the ballad “I’ll Follow the Sun.”

“There are lots of false starts where the band can’t get it together,” said Alan Pritchard, head of the auction house’s entertainment department.

The tape also features versions of songs including “I Feel Fine,” “I’m a Loser” and “Don’t Put Me Down Like This.”

The tape is expected to sell for 8,000 pounds to 12,000 pounds (US$16,000 to US$24,000) at an auction in Midgham, about 45 miles (75 kilometers) west of London, on Tuesday.

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