having previewed two of the segments in his May 1968 demo. According to MacDonald, this approach was possibly inspired by the Incredible String Band's songwriting. The basic backing track ran to 95 takes, due to the irregular time signatures and variations in style throughout the song. The final version consisted of the best halves of two takes edited together. Lennon later described the song as one of his favourites, while the rest of the band found the recording rejuvenating, as it forced them to re-hone their skills as a group playing together to get it right. Apple's press officer Derek Taylor made an uncredited contribution to the song's lyrics. Side two McCartney got the title of "Martha My Dear" from his Old English Sheepdog, but the lyrics are otherwise unrelated. The entire track is played by him backed with session musicians, and features no other Beatles. Martin composed a brass band arrangement for the track. "I'm So Tired" was written in India when Lennon was having difficulty sleeping. It was recorded at the same session as "The Continuing Story of Bungalow Bill". The lyrics make reference to Walter Raleigh, calling him a "stupid get" for introducing tobacco to Europe; while the track ends with Lennon mumbling "Monsieur, monsieur, how about another one?" This became part of the Paul is Dead conspiracy theory, when fans claimed that when the track was reversed, they could hear "Paul is dead man, miss him, miss him, miss him". "Blackbird" features McCartney solo, accompanying himself on acoustic guitar. According to Lewisohn, the ticking in the background is a metronome, but Emerick recalls capturing the sound via a microphone placed beside McCartney's shoes. The birdsong on the track was taken from the Abbey Road sound effects collection, and was recorded on one of the first EMI portable tape recorders. Harrison wrote "Piggies" as an attack on greed and materialism in modern society. His mother and Lennon helped him complete the lyrics. Thomas played harpsichord on the track, while Lennon supplied a tape loop of pigs grunting. "Rocky Raccoon" evolved from a jam session with McCartney, Lennon and Donovan in Rishikesh. The song was taped in a single session, and was one of the tracks that Martin felt was "filler" and put on only because the album was a double. "Don't Pass Me By" was Starr's first solo composition for the band; he had been toying with