written by John Lennon - Paul McCartneyRecorded / 6, 7 and 22 April 1966John Lennon – vocals, Hammond organ,Mellotron, tape loopsPaul McCartney - bass guitar, tape loopsGeorge Harrison - Sitar, Tambura, lead guitar, tape loopsRingo Starr - drums, tambourine, tape loopsGeorge Martin - tack pianoadditional backing vocals Tibetan buddhist and The Gyuto Monks