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60 Years of 'Tomorrow Never Knows': The Beatles' Psychedelic Turning Point

other · 2026-08-05

On August 5, 1966, the Beatles released 'Revolver', an album that marked a decisive shift from their early pop sound to experimental and psychedelic music. The closing track, 'Tomorrow Never Knows', written by John Lennon, became a landmark of this transformation. Lennon's inspiration came from Timothy Leary's book 'The Psychedelic Experience', which he discovered at the Indica Bookshop in London in April 1966. The song's lyrics, based on Leary's text, were written in iambic pentameter and without rhymes, reflecting Lennon's LSD experiences. In the studio, Lennon's vague instructions led to innovative techniques: his voice was processed through a rotating Leslie speaker, and Paul McCartney added layers of tape loops, orchestral chords, sitar, Mellotron, and distorted laughter. The result was a radical departure from conventional song structure, blending Indian music, avant-garde composition, and psychedelic philosophy. The song foreshadowed the Beatles' later experimental work, including 'Sgt. Pepper's Lonely Hearts Club Band' (1967) and 'Magical Mystery Tour' (1967). After Revolver, the Beatles ceased touring and focused on studio experimentation, producing some of their most acclaimed music. The song's impact on contemporary music and its role in the Beatles' evolution are widely recognized.

Key facts

  • Revolver was released on August 5, 1966, 60 years ago.
  • 'Tomorrow Never Knows' was the closing track of Revolver.
  • John Lennon wrote the song, inspired by Timothy Leary's 'The Psychedelic Experience'.
  • Lennon discovered the book at the Indica Bookshop in London in April 1966.
  • The song's lyrics use iambic pentameter and avoid rhymes.
  • Lennon's voice was processed through a rotating Leslie speaker.
  • McCartney added tape loops, sitar, Mellotron, and distorted laughter.
  • The song is considered a precursor to the Beatles' psychedelic phase.
  • After Revolver, the Beatles stopped touring and focused on studio work.
  • The song influenced later albums like Sgt. Pepper's Lonely Hearts Club Band.

Entities

Artists

  • John Lennon
  • Paul McCartney
  • George Martin
  • Timothy Leary
  • Barry Miles
  • Ian Leslie

Institutions

  • The Beatles
  • Indica Bookshop
  • Abbey Road Studios

Locations

  • London
  • United Kingdom

Sources