File:The Beatles - Recording Session, September 5, 1967

Studio One, EMI Studios, London - September 5, 1967 The first recording session following the death of their manager Brian Epstein on August 27th, sixteen takes of “I Am The Walrus” were recorded on this day. The initial rhythm track consisted of a Hohner pianet electric piano, electric guitar, drums and bass but before the last take of the session, ‘16’, Paul switched to tambourine instead, opting to overdub his bass much like he did during most 1967 sessions. John also sang a guide vocal throughout the session but it's hardly present in any of the recordings we have available. Although the band recorded a fair amount of takes, the extra bar before the “yellow matter custard” line proved to be quite difficult as they had trouble remembering the change and this would also continue through during the mixing session as well. More overdubs for the song followed the next day with John’s lead vocals, bass and some extra snare drums, all recorded on ‘take 17’ (tape reduction of the original ‘take 16’).

The original source for most of these recordings were the monitor mixes made by disc jockey Roger Scott with his Sony Walkman. It's possible that the rehearsal take is a fragment of 'take 3' as the tape was rewound after the first three takes. A mix containing the original rhythm track with John's lead vocal overdub was released on Anthology 2.

Anthology 2 mix: https://www.youtube.com/watch?v=uNXQEqCXII4

Track Listing: 1. I Am The Walrus (Take 7 - Breakdown) [0:00] 2. I Am The Walrus (Take 8 - Breakdown) [1:51] 3. I Am The Walrus (Take 9) [2:33] 4. I Am The Walrus (Rehearsal Take - Take 3 remnant?) [6:56] 5. I Am The Walrus (Unknown Take) [8:08]

Thank you csnyfan for combing every source available!