"Penny Lane" Overdub Tape

On January 09 1967, The Beatles were in the studio to lay overdubs by flutes, trumpets, piccolos and a flugelhorn for the addition to the "Penny Lane" completed tracks. The main basic track as well as various vocals and instruments played by the band were already in place by this session.
It seems that John Lennon decided to tape a part of the overdub session and occasionally adding some effects to the sound, although the reason for this is unknown.
Hearing it this way shows how The Beach Boys' "God Only Knows" could have been a major influence on "Penny Lane" for McCartney as there are similarities to my ears. Especially the isolation of the piano and the flutes. The musicians are conducted by George Martin in Studio 2 at EMI.
This tape has been bootlegged on vinyl as "Arrive Without Travelling" and later on compact disc as "Arrive Without Aging". The tape is also available on the CD "The Lost Pepperland Reel" and on youtube as demonstrated below for your listening pleasure.
https://www.youtube.com/watch?v=17BmJHUECFU