The Beatles made EMI’s Abbey Road Studios a household name after they titled their 1969 album for the facility. It was there that they recorded nearly all of their songs, beginning with their first release, 1962’s “Love Me Do.”
But as their need for studio time grew in 1967 during the making of Sgt. Pepper’s Lonely Hearts Club Band and Magical Mystery Tour, the Beatles occasionally found Abbey Road’s three studios booked for sessions by other EMI artists. On such occasions, they turned to the growing number of independent recording establishments sprouting up in London at the time, among them Olympic Studios.
Source: Guitar World