To produce the sharp nasal sound over the middle eight, Harrison sang through a filter that limited the signal to a narrow, 3.5-kilohertz band. Described by Everett as "remarkable", the pitch of Harrison's vocals in the final verse ranges from a low E bass note in one of the harmony parts, to a descant falsetto B4 in the high harmony part. Lennon created a tape loop of pre-recorded pig noises, sourced from EMI's library, as well as supplying his own grunting sounds. Drum beats were also added, marking the transition from the solo into the third verse. Final overdubs on the song were carried out on 10 October, during the last week of recording for The Beatles. Having returned from his extended holiday, Martin wrote a string arrangement for four violins, two violas and two cellos. These parts were recorded during the same orchestral overdubbing session as for Lennon's track "Glass Onion". Towards the end of "Piggies", Harrison added the spoken words "One more time", before the orchestra played the last two chords. In his overview of the recording, author and critic Tim Riley interprets the "thick scouse" delivery of this introduction to the "final grand cadence" as Harrison "smearing social elitists with their own symbols of 'high' culture". Everett refers to the contrast between the various classical elements and the combination of pig sounds and "rude" final cadence as representing an "Orwellian comparison of pigs to socially horrid, though outwardly refined, tyrants". Mixing on "Piggies" was completed on 11 October. The mono mix has the animal sounds appearing at different points in the song, relative to the stereo version. In addition, Harrison's guitar is more prominent in the mono mix. Release and reception Apple Records, the Beatles' EMI-distributed record label, released The Beatles on 22 November 1968, with "Piggies" sequenced as the fourth track on side two of the double LP. It appeared between two other songs with animal names in their titles – "Blackbird" and "Rocky Raccoon". The animal-themed sequencing was a deliberate decision on the part of Lennon and McCartney, who prepared the running order of the album's 30 tracks, with Martin, after Harrison had left for Los Angeles to work with Apple signing Jackie Lomax. According to author Mark Hertsgaard, "Piggies" "[kept] the Beatles' countercultural flame alive", as the song was embraced as an anti-authoritarian anthem by the counterculture, following a year of protests and civil