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Tomorrow Never Knows

Song by The Beatles • Lennon

Revolver (1966) — Studio awakening — backwards everything, tape loops.

★ Marquee entry — extended editorial essay

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Background

Lennon adapted the lyric from Timothy Leary's The Psychedelic Experience, itself a Westernised reading of the Bardo Thödol (the 'Tibetan Book of the Dead'). The title — 'tomorrow never knows' — was taken from a Ringo malapropism, a phrase the drummer had used in passing.

What's distinctive

One of 101 songs led primarily by John. Recorded approximately 1 of 16 into the Revolver / Studio Awakening (1966) sessions. Carries the unique tag 'tape-loops' — no other song shares it. Take count: 15 (highest take number documented in Lewisohn (1988)).

Opening line — "Turn off your mind, relax and float downstream…" (brief identification excerpt; full lyrics © Sony Music Publishing — see Genius link in References.)

J John Lennon — lead vocalJ Lennon — rhythm guitarP McCartney — bassG Harrison — lead guitarR Starr — drums

Recording

Cut in a single afternoon on 6 April 1966 — the very first session of the Revolver project. The track is built on a single chord (C), Ringo playing a heavily-compressed loop-feel pattern, McCartney's bass providing the harmonic motion. Lennon's vocal was fed through a rotating Leslie speaker (taken from an organ cabinet) for the second half of the track — a Geoff Emerick experiment that violated EMI engineering protocols. Five tape loops, prepared on home Brennell machines, were fed in live to the mix from five different studios on EMI's three floors, each operated by a separate engineer with a finger on the spool to maintain pitch.

Recording process — typical signal flow for the Revolver / Studio Awakening (1966)
DemoBackingOverdubsVocalsMix
Studio: EMI Studios, Abbey Road • Console: REDD.51 • Tape: Studer J37 four-track (with vari-speed, ADT)
StudioEMI Studios, Abbey Road — Studio Three (largely)
Tape machineStuder J37 four-track (with vari-speed, ADT)
ConsoleREDD.51
MicrophonesNeumann U47/U48, AKG C12, STC 4038, close-miking pioneered (Emerick) on Ringo's bass drum
Outboard / effectsEMI RS124, EMT 140 plate, Fairchild 660 limiter, EMI Artificial Double Tracking (ADT), Leslie cabinet (vocals)
GuitarsEpiphone Casino, Gibson SG (Harrison), Rickenbacker 4001S bass (McCartney introduced)
AmplifiersVox AC100, Vox 7120, Fender Showman, Fender Bassman
ProducerGeorge Martin
Engineer / 2ndGeoff Emerick • Phil McDonald (2nd)
Estimated takes15 (highest take number documented in Lewisohn (1988))
Recording: 'Mark I' (working title of 'Tomorrow Never Knows') (takes— Mark Lewisohn, The Complete Beatles Recording Sessions, p.70

Pattern analysis

Lead vocalists across Revolver
14
Lennon 5
McCartney 5
Harrison 3
Starr 1
Theme prevalence across the canon
tape-loops1leslie1one-chord1tibetan-book1studio-revolution1
Track length percentile — Tomorrow Never Knows sits at the 73th percentile (median 2:33)
shorter ←→ longer2:57
Recorded 6 Apr 1966 — position on the band's studio chronology
196219631964196519661967196819691970
Estimated takes — Tomorrow Never Knows: 15 takes (highest take number documented in Lewisohn (1988))
era median 15 15 Revolver / Studio Awakening (1966): takes range 13–32
Key prevalence in the canon — Tomorrow Never Knows is in C (28 songs share this key)
E39A34G33C28D27F10Am10B8
Songwriting credits on Revolver (composition mix)
14
Solo Lennon/McCartney 10
Harrison 3
Lennon–McCartney joint 1
Recording density per month — 6 Apr 1966 (highlighted) shared the studio with 9 other song(s) that month
196219631964196519661967196819691970
Theme rarity — orange bars are unusually rare tags in the canon (≤3 songs share)
tape-loops1 ★leslie1 ★one-chord1 ★tibetan-book1 ★studio-revolution1 ★
Position on Revolver — track 14 of 14
#14openercloser
Recording process — typical signal flow for the Revolver / Studio Awakening (1966)
DemoBackingOverdubsVocalsMix
Studio: EMI Studios, Abbey Road • Console: REDD.51 • Tape: Studer J37 four-track (with vari-speed, ADT)

Legacy & release history

Inspired Brian Wilson's Pet Sounds production approach, the entire psychedelic genre, and (almost direct) Steve Jobs' 1984 Macintosh launch quote. Sampled by Chemical Brothers (Setting Sun) and others; commonly cited as the first track to bring musique concrète into mainstream pop.

Mono & stereo

Documented alternate versions

Released on

Cross-references

Other songs sharing themes (tape-loops, leslie, one-chord, tibetan-book, studio-revolution)

Other songs led by the same vocalist

Other songs from this era

tape-loopsleslieone-chordtibetan-bookstudio-revolution

References & external databases