The Beatles' recording technology
The Beatles' recording technology developed during the 1960s and influenced the way music was recorded. Effects achieved on their recordings include sampling and Artificial Double Tracking and the creative use of multitrack recording machines. They also used classical instruments on their recordings and guitar feedback. The Beatles' attitude to the recording process was summed up by Paul McCartney: "We would say, 'Try it. Just try it for us. If it sounds crappy, OK, we'll lose it. But it might just sound good.' We were always pushing ahead: Louder, further, longer, more, different."
- 1960s recording technology 1
- The Beatles' attitude 2
- Guitar feedback 3
- Classical musicians on popular albums 4
- Artificial double tracking 5
- Close miking of acoustic instruments 6
- Sampling 7
- Direct input 8
- Synchronising tape machines 9
- Backwards tapes 10
- Notes 11.1
- Bibliography 11.2
1960s recording technology
In the early part of the 1960s, EMI's Abbey Road Studios was equipped with EMI-made British Tape Recorders (BTR) which were developed in 1948, essentially as copies of German wartime recorders. The BTR was a twin-track, valve (Vacuum tube) based machine. When recording on the twin-track machine there was very little opportunity for overdubbing; the recording was essentially that of a live music performance.
The first two Beatles albums, Please Please Me and With The Beatles, were recorded on the BTR two track machines; with the introduction of four-track machines in 1963 (the first 4-track Beatles recording was "I Want to Hold Your Hand") there came a change in the way recordings were made—tracks could be built up layer by layer, encouraging experimentation in the multitrack recording process.
In 1968 eight-track recorders became available, but Abbey Road was somewhat slow in adopting the new technology and a number of Beatles tracks (including "Hey Jude") were recorded in other studios in London to get access to the new eight-track recorders.
The Beatles' final album Abbey Road, was the only one to be recorded using a transistorised mixing console, the EMI TG12345, rather than the earlier REDD valve consoles. Let It Be was recorded largely at the Beatles' own Apple Studios, using borrowed REDD valve consoles from EMI after the designer 'Magic' Alex Mardas failed to come up with a suitable desk for the studio. Engineer Geoff Emerick has said that the transistorised console played a large part in shaping overall sound of Abbey Road, lacking the aggressive edge of the valve consoles.
The Beatles' attitude
The success of the Beatles meant that EMI gave them carte blanche access to the Abbey Road studios—they were not charged for studio time and could spend as long as they wanted working on music. Starting around 1965 with the Rubber Soul sessions, the Beatles increasingly used the studio as an instrument in itself, spending long hours experimenting and writing.
The Beatles also demanded a lot from the studio; John Lennon allegedly wanted to know why the bass on a certain Wilson Pickett record far exceeded the bass on any Beatles records. This prompted EMI engineer Geoff Emerick to try new techniques for "Paperback Writer".
"'Paperback Writer' was the first time the bass sound had been heard in all its excitement", said Emerick in Mark Lewisohn's book The Complete Beatles Recording Sessions. "To get the loud bass sound Paul played a different bass, a Rickenbacker. Then we boosted it further by using a loudspeaker as a microphone. We positioned it directly in front of the bass speaker and the moving diaphragm of the second speaker made the electric current." 
The stereo version of George Harrison's "Blue Jay Way" (1967, Magical Mystery Tour) also includes backwards vocals, which is actually a backwards copy of the entire mix, including all instruments, which is faded up at the end of each phrase.
In an homage to the Beatles' experimentation with reversed tracks (and those rumoured), the "reunion" track "Free as a Bird" featured a backward message that sounds like "Made by John Lennon." This is only a coincidence, and the phrase that was reversed to achieve this was "Turned out nice again" (a catchphrase of
- Lewisohn - Complete Beatles Recording Sessions. p13.
- 2002/123/1 Reel-to-reel tape recorder, BTR1, metal / plastic / glass / electronic components, designed and manufactured by EMI (Electric and Musical Industries), England, 1948... at www.dhub.org
- Hertsgaard - A Day in The Life. p75.
- Kehew, Brian; Kevin Ryan (2006). Recording The Beatles. Curvebender Publishing. p. 216.
- Lewisohn - The Complete Beatles Recording Sessions p. 54
- Lewisohn - Complete Beatles Recording Sessions. p146.
- Emerick - Here, There, and Everywhere. p. 277
- Lewisohn - The Complete Beatles Recording Sessions p. 100
- Lewisohn - The Complete Beatles Recording Sessionsp. 74
- page 51 The Foundations of Rock: From "Blue Suede Shoes" to "Suite: Judy Blue Eyes" by Walter Everett
- Hertsgaard - A Day in the Life p103.
- [ oldies.about.com]
- page 342 The Foundations of Rock: From "Blue Suede Shoes" to "Suite: Judy Blue Eyes" by Walter Everett
- Lewisohn - Complete Beatles Recording Sessions. p72.
- Davies - 'The Beatles' p300.
- All Music Guide Song Review "Eight Days a Week" by Richie Unterberger
- Page 347 The Foundations of Rock. From "Blue Suede Shoes" to "Suite: Judy Blue Eyes". Walter Everett.
- Page 346 The Foundations of Rock. From "Blue Suede Shoes" to "Suite: Judy Blue Eyes". Walter Everett
- Electronic and Experimental Music: Pioneers in Technology and Composition, pp 27-28, Thomas B. Holmes, Routledge, 2002, ISBN 0-415-93644-6
- "Wolfman". www.lovely.com. Retrieved 2008-12-19.
- "I Feel Fine" All Music Guide Song Review by Richie Unterberger
- Lewisohn - Complete Beatles Recording Sessions. p50.
- The Beatles - Anthology p175
- The Beatles - Anthology p197
- Emerick - Here, There, and Everywhere. p. 56
- Lewisohn - Complete Beatles Recording Sessions. p11.
- Emerick - Here, There, and Everywhere. p. 57
- Emerick - Here, There, and Everywhere. p. 157
- Emerick - Here, There, and Everywhere. p. 159
- Lewisohn - Complete Beatles Recording Sessions. p70.
- Lewisohn - The Complete Beatles Recording Sessions p. 70
- About The Beatles - Songs - Lucy In The Sky With Diamonds
- Emerick - Here, There and Everywhere. p 127
- The Evolution of Beatles' Recording Technology by Cari Morin (1998)
- Emerick - Here, There and Everywhere: My Life Recording the Music of The Beatles p122-123
- Lewisohn - Complete Beatles Recording Sessions. p8.
- Lewisohn - Complete Beatles Recording Sessions. p95.
- Repsch, John - The Legendary Joe Meek
- Lewisohn - Complete Beatles Recording Sessions. p96.
- Emerick - Here, There and Everywhere. p 154
- Editors Sync Guide (ESG) at www.sssm.com
Although the technique was reasonably successful, Townsend recalled that when they tried to use the tape on a different machine, the synchronisation was sometimes lost. George Martin claimed this as the first time tape machines had been synchronised, although SMPTE sychronisation for video/audio synchronisation was developed around 1967 so it's probably more accurate to say that this was the first use in a major studio.
On 10 February 1967 during the recording of "A Day in the Life", Ken Townsend synchronised two machines so that extra tracks were available for recording the orchestra. The technique that Townsend used was to record a 50 Hz tone on the one remaining track on one machine and used that tone to control the speed of a second machine. Townsend thereby effectively used pilottone, a technique that was common in 16mm news gathering whereby a 50/60 Hz tone was sent from the movie camera to a tape recorder during filming in order to achieve lip-synch sound recording. With the simple tone used for "A Day in the Life", the start position was marked with a wax pencil on the two machines and the tape operator had to align the tapes by eye and attempt to press play and record simultaneously for each take.
One way of increasing the number of tracks available for recording is to synchronise tape machines together. Nowadays SMPTE timecode is used to synchronise tape machines. Modern SMPTE controlled recorders provide a mechanism so that the second machine will automatically position the tape correctly and start and stop simultaneously with the master machine.
Synchronising tape machines
Direct input was first used by the Beatles on 1 February 1967 to record McCartney's bass on "Sgt. Pepper's Lonely Hearts Club Band". With direct input the guitar pick-up is connected to the recording console via an impedance matching DI box. Ken Townsend claimed this as the first use anywhere in the world, although Joe Meek, an independent producer from London, is known to have done it earlier (early 1960s) and in America, Motown's engineers had been using Direct Input since the early 1960s for guitars and bass guitars, primarily due to restrictions of space in their small 'Snakepit' recording studio. (Their session bassist James Jamerson can therefore claim a precedent of about 5 years on McCartney.) However, the use by the Beatles was probably the first in a major British studio, and was developed without specific knowledge of the Motown techniques.
More obvious, and therefore more influential samples were used on "I Am the Walrus"—a live BBC Third Programme broadcast of King Lear was mixed into the track on 29 September 1967. McCartney has also described a lost opportunity of live sampling: the EMI studio was set up in such a way that the echo track from the echo chamber could be picked up in any of the control rooms. Paul Jones was recording in a studio whilst "I Am the Walrus" was being mixed and the Beatles were tempted to "nick" (steal) some of Jones's singing to put into the mix.
A similar technique was used for "
The Beatles first used samples of other music on "Geoff Emerick, the original solo was in the same key and was transferred to tape, cut into small segments and re-arranged to form a brief solo which was added to the song.
In 1966, this was considered a radically new way of recording strings; nowadays it is common practice.
Microphones began to be placed closer to the instruments in order to produce a fuller sound. Ringo's drums had a large sweater stuffed in the bass drum to 'deaden' the sound while the bass drum microphone was positioned very close which resulted in the drum being more prominent in the mix. "Eleanor Rigby" features just Paul and a double string quartet that has the instruments miked so close to the string that 'the musicians were in horror'. In "Got to Get You into My Life", the brass were miked in the bells of their instruments then put through a Fairchild limiter.
 During the recording of "
Close miking of acoustic instruments
ADT can be heard on the lead guitar on "Here, There and Everywhere" and the vocals on "Eleanor Rigby" for example. The technique was used later by bands like the Grateful Dead and Iron Butterfly, amongst others.
ADT greatly influenced recording—virtually all the tracks on Revolver and Sgt. Pepper's Lonely Hearts Club Band had the treatment and it is still widely used for instruments and voices. Nowadays, the effect is more often known as automatic double tracking.
It has been claimed that pseudoscientific explanation of ADT ("We take the original image and we split it through a double-bifurcated sploshing flange") given to Lennon originated the phrase flanging in recording, as Lennon would refer to ADT as "Ken's flanger", although other sources claim the term originated from pressing a finger on the tape recorder's tape supply reel (the flange) to make small adjustments to the phase of the copy relative to the original.
The effect had been created "accidentally" earlier, when recording "Yesterday": loudspeakers were used to cue the string quartet and some of McCartney's voice was recorded onto the string track, which can be heard on the final recording.
Artificial double tracking (ADT) was invented by Ken Townsend in 1966, during the recording of Revolver. With the advent of four-track recordings, it became possible to double track vocals whereby the performer sings along with his or her own previously recorded version of the song. Phil McDonald, a member of the studio staff, recalled that Lennon did not really like singing a song twice - it was obviously important to sing exactly the same words with the same phrasing - and after a particularly trying evening of double tracking vocals, Townsend "had an idea" while driving home one evening hearing the sound of the car in front. ADT works by taking the original recording of a vocal part and duplicating it onto a second tape machine which has a variable speed control. The manipulation of the speed of the second machine during playback introduces a delay between the original vocal and the second recording of it, giving the effect of double tracking without having to sing the part twice.
Artificial double tracking
Emerick was the engineer on "A Day in the Life", which used a 40 piece orchestra and recalled "dismay" amongst the classical musicians when they were told to improvise between the lowest and highest notes of their instruments (whilst wearing rubber noses). However, Emerick also saw a change in attitude at the end of the recording when everyone present (including the orchestra) broke into spontaneous applause. Emerick recalled the evening as the "passing of the torch" between the old attitudes to pop music and the new.
Geoff Emerick, documented the change in attitude to pop, as opposed to classical music during the Beatles career. In EMI at the start of the 1960s, balance engineers were either "classical" or "pop". Similarly, Paul McCartney recalled a large "Pop/Classical" switch on the mixing console. Emerick also noted a tension between the classical and pop people - even eating separately in the canteen. The tension was also increased as it was the money from pop sales that paid for the classical sessions.
Part of the influence of the Beatles was the bringing closer together of the classical and pop "worlds"; the mix of classical strings with electric guitars and drums used on "Strawberry Fields Forever" led Roy Wood to co-found the Electric Light Orchestra to continue where "Strawberry Fields" left off.
As the Beatles musical work developed, particularly in the studio, classical instruments were increasingly added to tracks. Lennon recalled the two way education; the Beatles and Martin learning from each other - George Martin asking if they'd heard an oboe and the Beatles saying, "No, which one's that one?"
 Although strings were commonly used on pop recordings, George Martin's suggestion that a string quartet be used for the recording of "
Classical musicians on popular albums
The Beatles continued to use feedback on later songs. "It's All Too Much", for instance, begins with sustained guitar feedback.
Mark Lewisohn states that all the takes of the song included the feedback.
Combined with this was the conscious desire to be different. McCartney said, "Each time we just want to do something different. After Please Please Me we decided we must do something different for the next song... Why should we ever want to go back? That would be soft." The desire to "do something different" pushed EMI's recording technology through overloading the mixing desk as early as 1964 in tracks such as "Eight Days a Week" even at this relatively early date, the track begins with a gradual fade-in, a device which had rarely been employed in rock music. Paul McCartney would create interesting bass lines by overdubbing in counterpoint to Beatles tracks that were previously completed. Also overdubbed vocals were used for new artistic purposes on "Julia" with John Lennon overlapping the end of one vocal phrase with the beginning of his next.
All of the Beatles had Brenell tape recorders at home, which allowed them to record out of the studio. Some of their home experiments were used at Abbey Road and ended up on finished masters; in particular on "Tomorrow Never Knows".
The Beatles' song "You Like Me Too Much" has one of the earliest examples of this technique: the Beatles recorded the electric piano through a Hammond B-3's rotating Leslie speaker, a 122 or 122RV, a trick they would come back to over and over again. (At the end of the intro, the switching off of the Leslie is audible.) Also on "Tomorrow Never Knows" the vocal was sent through a Leslie speaker. Although it's not the first recorded vocal use of a Leslie speaker, the technique would later be used by the Grateful Dead, Cream, The Moody Blues and others.
Engineers and other Abbey Road staff have reported that the Beatles would try to take advantage of accidental occurrences in the recording process; "I Feel Fine" and "It's All Too Much"'s feedback and "Long, Long, Long"'s resonating glass bottle (towards the end of the track) are examples of this. In other instances the group deliberately toyed with situations and techniques which would foster chance effects, such as the live (and thereby unpredictable) mixing of a UK radio broadcast into the fade of "I Am the Walrus" or the chaotic assemblage of "Tomorrow Never Knows". (The group would frequently refer to this method as 'random', although it is more correctly described as chance determinism.)