Recording

Strawberry Fields Forever and Penny Lane over the preceding weeks. The two sections of the song are separated by a 24-bar bridge. At first, The Beatles were not sure how to fill this transition. Thus, at the conclusion of the recording session for the basic tracks, this section solely consisted of a simple repeated piano chord and the voice of assistant Mal Evans counting the bars. Evans's guide vocal was treated with gradually increasing amounts of echo. The 24-bar bridge section ended with the sound of an alarm clock triggered by Evans. The original intent was to edit out the ringing alarm clock when the missing section was filled in; however it complemented McCartney's piece well; the first line of McCartney's song began "Woke up, fell out of bed", so the decision was made to keep the sound. Martin later said that editing it out would have been unfeasible in any case. The basic track for the song was refined with remixing and additional parts added at recording sessions on 20 January and 3 February. Still, there was no solution for the missing 24-bar middle section of the song, when McCartney had the idea of bringing in a full orchestra to fill the gap. To allay concerns that classically-trained musicians would not be able to improvise the section, producer George Martin wrote a loose score for the section. It was an extended, atonal crescendo that encouraged the musicians to improvise within the defined framework. The orchestral part was recorded on 10 February 1967, with McCartney and Martin conducting a 40-piece orchestra. The recording session was completed at a total cost of £367 for the players, an extravagance at the time. Martin later described explaining his improvised score to the puzzled orchestra: McCartney noted that the strings were able to keep themselves in the designated time, while the trumpets were "much wilder". McCartney had originally wanted a 90-piece orchestra, but this proved impossible; the difference was made up, as the semi-improvised segment was recorded multiple times and eventually four different recordings were overdubbed into a single massive crescendo. The results were successful; in the final edit of the song, the orchestral bridge is reprised after the final verse. It was arranged for the orchestral session to be filmed by NEMS Enterprises for use in a planned television special. The film was never released in its entirety, although portions of it can be seen in the "A Day in the Life" promotional film, which includes shots of studio guests Mick Jagger, Marianne Faithfull, Keith Richards, Donovan, Pattie Boyd and Michael Nesmith. Reflecting The Beatles' taste for experimentation and the avant garde at this point in their careers, the orchestra players were asked to wear or were given a costume piece on top of their formal dress. This resulted in different players wearing anything from red noses to fake stick-on nipples. Martin recalled that the lead violinist performed wearing a gorilla paw, while a bassoon player placed a balloon on the end of his instrument. Due to the multiple takes required to perfect the orchestral cacophony and the final chord, as well as their considerable procrastination in composing the song, the total duration of time spent recording "A Day in the Life" was 34 hours. In contrast, the Beatles' earliest work, their first album Please Please Me, was recorded in its entirety in only 10 hours.

Song structure

orchestra crescendos, and a sustained final piano chord. While Lennon’s lyrics were inspired by contemporary newspaper articles, McCartney’s were reminiscent of his youth. The decisions to link sections of the song with orchestral crescendos and to end the song with a sustained piano chord were made only after the rest of the song had been recorded. A waveform view of “A Day in the Life” showing its characteristic crescendos and sudden instrumental changes. "A Day in the Life" is in the key of G major, but, as Alan W. Pollack explains, "its true center of gravity is in the parallel minor G Major and the Major keys of E". The verses are in G-major/E-minor and the bridge is in E-major. A 4/4 meter is used throughout. The song is laid out with an instrumental beginning, followed by three verses (0:13), an orchestral crescendo (1:45), a middle section (2:16), an orchestral bridge (2:49), the final verse (3:19), a second orchestral crescendo (3:50), and a final piano chord (4:21–5:05). Each verse is sung by Lennon and follows the same basic layout, but each has a different way of ending. The first verse, which is twenty measures, ends with a repetition of the F major chord progression before returning to the home key. The second verse, two measures shorter than the first, ends on the C major chord rather than repeating the F major progression. The third verse is the same as the second, except that there is one more measure (to accommodate the "I'd love to"), and the verse does not return to the home key. Instead it leads to a bridge, a 24-measure long glissando-like crescendo starting from low E to an E several octaves higher. Random cymbal crashes are interspersed near the end to "challenge your sense of meter". An alarm clock rings, beginning McCartney's middle section. While the pulse of this section remains the same, the accents suggest a tempo twice as fast as that of the verses before. The three chords in this nineteen measures long section are the I, flat VII, and V chords (E, D, and B). This is followed by an orchestral bridge: a repeated circle of fifths (from C to E) over twenty measures. The bridge is accompanied by a wordless vocal ("Ahhhh...")There is currently no definitive available reference as to who the vocalist is. and leads to the fourth and final verse. The final verse has the same layout as the third verse. Starr's drumming, however, retains its double-time feel from McCartney's section. This verse leads to the second crescendo. However, after the orchestra hits its highest note, there is a measure of silence, which leads to the final E-major piano chord.