according to music critic Tim Riley, give the performance a "parodic irreverence". That session was the last time that Brian Epstein, the group's manager, visited them in a recording studio. Following Epstein's death on 27 August, the Beatles committed to making Magical Mystery Tour because as McCartney insisted the band needed to focus on a new creative project. The Beatles devoted a 16 September session at EMI Studios to remaking "Your Mother Should Know" because McCartney was dissatisfied with the earlier version. The remake was discarded, however, because he and Lennon completed overdubs on the Chappell recording on 29 September. McCartney added bass guitar while Lennon overdubbed Hammond organ, the latter filling out the song's vocal-less bridge sections. Mixing was completed on 7 November, with panning variation applied to the vocals in the stereo mix. Sequence in Magical Mystery Tour In the Magical Mystery Tour film, the song supports an old-fashioned dance segment that McCartney called "the Busby Berkeley ending". It was filmed on 24 September, at the end of a six-day shoot at RAF West Malling, a Royal Air Force base in Kent. McCartney had intended to shoot the scene at Shepperton Studios, outside London, but the Beatles failed to appreciate that film studios needed to be booked in advance. Tony Bramwell, the film's production manager, recalled having a staircase for the sequence assembled on scaffolding inside a disused aircraft hangar, which was the most elaborate set piece in the film. Around 160 dancers from Peggy Spencer's formation dancing team, and 24 female RAF cadets, were hired as extras. The formation dancers were regulars on the TV show Come Dancing, and were brought in by bus from Birmingham, Cardiff and Newcastle for the shoot. According to Maurice Gibb of the Bee Gees, McCartney got the idea for the Beatles' costumes from seeing him perform in concert with the Bee Gees, dressed all in white. The band rehearsed their dance routine for most of the day but the generators failed just as filming got underway. Gavrik Losey, a production assistant on the film, said that, while the generators were repaired, the dancers were "bribed" into staying late with Beatles autographs. The sequence starts with the Beatles coming down a grand staircase in white evening tails. After they descend, a line of female RAF cadets march through the shot and the band continue to mime to the song, surrounded by a