<P> Despite persistent rumours, the song was never officially banned by the BBC, and aired contemporaneously on BBC Radio at least once, on 20 May 1967 . </P> <P> Most of the song is in simple triple metre (3 4 time), but the chorus is in 4 4 time . The song modulates between musical keys, using the key of A major for verses, B ♭ major for the pre-chorus, and G major for the chorus . It is sung by Lennon over an increasingly complicated underlying arrangement which features a tamboura, played by George Harrison, lead electric guitar put through a Leslie speaker, played by Harrison, and a counter melody on Lowrey organ played by McCartney and taped with a special organ stop sounding "not unlike a celeste". Session tapes from the initial 1 March 1967 recording of this song reveal Lennon originally sang the line "Cellophane flowers of yellow and green" as a broken phrase, but McCartney suggested that he sing it more fluidly to improve the song . </P> <P> Lennon's inspiration for the song came when his son, Julian, showed him a nursery school drawing he called "Lucy--in the Sky with Diamonds", depicting his classmate Lucy O'Donnell (later Lucy Vodden). Julian Lennon said, "I don't know why I called it that or why it stood out from all my other drawings, but I obviously had an affection for Lucy at that age . I used to show Dad everything I'd built or painted at school, and this one sparked off the idea ..." Vodden, in a BBC radio interview in 2007, said, "I remember Julian and I both doing pictures on a double - sided easel, throwing paint at each other, much to the horror of the classroom attendant...Julian had painted a picture and on that particular day his father turned up with the chauffeur to pick him up from school ." O'Donnell died in 2009 at age 46 after suffering from lupus . </P> <P> According to both Lennon and Ringo Starr, who witnessed the moment, Julian first uttered the song's title upon returning home from nursery school . Lennon later recalled of the painting and the phrase, "I thought that (it was) beautiful . I immediately wrote a song about it ." </P>

Story behind lucy in the sky with diamonds
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