Ken Townsend MBE is a renowned sound engineer who played an important role at Abbey Road Studios. An engineer is a person professionally engaged in a field of Engineering. The EMI Group is a British music company comprising the major record company EMI Music – which operates several labels and is based in Kensington in He worked on several Beatles albums, such as Rubber Soul, Revolver and Sgt. Pepper's Lonely Hearts Club Band. The Beatles were a pop and rock band from Liverpool, England formed in 1960 Rubber Soul is the sixth studio album by the English rock band The Beatles. Revolver is the seventh album by English rock band The Beatles, released on 5 August 1966. Sgt Pepper's Lonely Hearts Club Band is the eighth studio album by the British rock band The Beatles. In 1966 he invented automatic double tracking (ADT). Automatic double tracking (ADT was an electronic system designed to augment the sound of voices and instruments during the recording process He later went on to work at Trident Studios.