I got this information on this influential track.
50 Most Influential Dance Records of All Times Muzik Magazine
50 Most Influential Dance Records of All Times
1) The Beatles "Tomorrow Never Knows" (EMI 1966)
Every idea ever used in dance music exists in this song. The first track recorded for the epochal Revolver L.P., Tomorrow Never Knows (the title lifted from the Tibetan Book of the Dead) was an acid-soaked masterpiece of prime psychedelia. Distorted guitars, Lennon's treated vocals, endless overdubs and the backwards drum loops all prefigure in some way the idea of sampling technology, while the group's interest in transcendental meditation - letting yourself be transported, disorientated, tripped out lies at the heart of everyone's club experiences. Recorded amazingly, only three years after the saccharine pop of She Loves You, this is untouchable genius.