Room 4, EMI Studios, Abbey RoadEngineer: Peter MewA rough mono mix was created of the Let It Be song Two Of Us during this hour-long late-night session. The mix was to allow an acetate disc to be cut of the song, so that Paul McCartney could give a copy to the US trio Mortimer. In May 1969 McCartney produced the band’s version for Apple, but the recording was never released.