<Tr> <Th> Producer </Th> <Td> George Martin </Td> </Tr> <Tr> <Th> Engineers </Th> <Td> Glyn Johns Alan Parsons </Td> </Tr> <P> The Beatles' rooftop concert was the final public performance of the English rock band the Beatles . On 30 January 1969, the band, with keyboardist Billy Preston, surprised a central London office and fashion district with an impromptu concert from the roof of the headquarters of the band's multimedia corporation Apple Corps at 3 Savile Row . In a 42 - minute set, the Beatles were heard playing nine takes of five songs before the Metropolitan Police Service asked them to reduce the volume . Footage from the performance was later used in the 1970 documentary film Let It Be . </P> <P> Although the concert was unannounced, the Beatles had planned on performing live during their Get Back sessions earlier in January . It is uncertain who had the idea for a rooftop concert, but the suggestion was conceived just days before the actual event . George Harrison brought in keyboardist Billy Preston as an additional musician, in the hope that a talented outside observer would encourage the band to be tight and focused . Ringo Starr remembered: </P>

Who played keyboards on the beatles rooftop concert