Wrapping Piece (lost soundtrack of Yoko Ono short film; 1967-1968)
From The Lost Media Wiki
Wrapping Piece is a short film created by Yoko Ono, capturing the wrapping of the Lion statues in Trafalgar Square. Not much is known about this event outside of the film.
The film is rarely screened, but had a soundtrack composed by Delia Derbyshire, of Doctor Who theme fame. At the last screening at the Institute of Contemporary Arts, in 2004, a curator was asked about the existence of the soundtrack claimed that he had no knowledge of one.