The Beatles fans' screams. 'Live Beatles' and 'Studio Beatles' had become entirely different beasts." The band's concert at San Francisco's Candlestick Park on 29 August was their last commercial concert. It marked the end of a four-year period dominated by almost nonstop touring that included over 1,400 concert appearances internationally. Freed from the burden of touring, the Beatles embraced an increasingly experimental approach as they recorded "Sgt. Pepper's Lonely Hearts Club Band", beginning in late November 1966. According to engineer Geoff Emerick, the album's recording took over 700 hours. He recalled the band's insistence "that everything on "Sgt. Pepper" had to be
Live at the BBC (Beatles album) BBC Radio producer Kevin Howlett sought out additional sources, such as tapes kept by people involved in the original sessions; others had contacted him after the series aired to inform him of their own home recordings of additional broadcasts. Remaining gaps were filled by recordings taken from available bootlegs. From the available recordings, the tracks for "Live at the BBC" were selected by longtime Beatles producer George Martin. Martin's selection criteria included both the quality of the sound and of the Beatles' performance. Of particular interest were the 36 songs that the Beatles never performed on their official releases, of