This is the only known acetate of the full-length recording of this 1967 Beatles' single, running for 6 minutes 39 seconds [in comparison with the 3 minutes 40 seconds of the released version]. This predominantly instrumental take was recorded on 14th June 1967 at Olympic Sound Studios. It features John Lennon on harpsichord, Paul McCartney on double bass, Ringo Starr on drums and George Harrison on rudimentary violin. John Lennon adds occasional vocals as a guide to where the chorus of the song will be.
In this form, the song has something of the chaotic structure of a work-in-progress song by the Beatles, with little of the precision or melodic nature of the finished record.
This acetate documented the state of the recording at the end of the 14th June session, before vocals and the more conventional orchestral backing was added at subsequent sessions.
The Beatles would perform the song live as Britain's contribution to the first global satellite broadcast, Our World, on 25th June, 1967, the specific reason to why the song was composed.