This site covers the original British Beatles Albums plus analyses of the lyrics of non-album tracks. Here for members of the Beatles.
Information on how the Beatles wrote the lyrics to their songs on The Beatles (white album) can be navigated from below the album cover.
Beatles Album: The Beatles AKA The White Album : Track 12
The lyrics to the Beatles song piggies were written by George Harrison and have a social message, somewhat to the way that George Orwell referred to the pigs in Animal farm. In the song George refers to all the middle classes as being little piggies.
John Lennon: Sound Effects
Paul McCartney: Bass guitar.
George Harrison: Vocals, Acoustic guitar
Ringo Starr: Tambourine
Other: Harpsichord, strings