[8][9][10] At Lennon's request, George Martin brought in Sounds Incorporated to provide the song's prominent brass backing.

[6] Take eight, which contains Lennon's vocals from the subsequent session but also omits animal sounds, was released on Anthology 2 in 1996.

[6][9] The final sound effect of a chicken clucking was so placed that it transforms into the guitar on the following track, "Sgt.

According to Emerick, these animal noises were inspired by the coda of "Caroline, No" that ended the Beach Boys' Pet Sounds album.

[11] They begin with the crow of a rooster, while the other animal sounds heard at the end of the song include birds, a cat, a dog, a cow, a horse, a sheep, a group of bloodhounds accompanying fox hunters on horseback with horns blasting, and a chicken.

[13] The song is played at 117 beats per minute, has an unusual rhythmic feel, and uses different time signatures.