TOMORROW NEVER KNOWS
basic recording- 6 Apr 1966
additional recording- 6,7,22 Apr 1966
master tape- 4 track
[a] mono 6 Jun 1966.
UK: Parlophone PMC 7009 Revolver 1966, matrix XEX 606-1.
[b] mono 6 Jun 1966.
UK: Parlophone PMC 7009 Revolver 1966.
US: Capitol T 2576 Revolver 1966.
[c] stereo 22 Jun 1966.
UK: Parlophone PCS 7009 Revolver 1966.
US: Capitol ST 2576 Revolver 1966.
CD: EMI CDP 7 46441 2 Revolver 1987.
Mono [a] is extremely rare, and is believed to have been manufactured on only the first day of UK pressing. Most copies have matrix 606-2 or 606-3 on side B, and are the standard version heard on all copies of other countries' pressings. [a] is mono remix 11 while the standard version is remix 8. In the rare [a], the vocal is louder and clearer over the effects, the fade is slightly longer and has more piano, and the effects are faded up quite differently (whereas [b] and [c] are pretty similar).
The similarity in the tape loop effects in [b] and [c] suggest that they were recorded into one of the 4 tracks of the master. The general trend is that in mono the transition is faster, so sound comes up to full volume almost suddenly and then goes completely out. Mono [b] starts with the loop track at full volume while stereo [c] fades in on it. The guitar sound in the break sounds more processed and full in mono [b]. At the start of the second vocal section stereo has a feedback whistle in "love is all and love is everyone" while [b] does not.
http://www.columbia.edu/~brennan/beatles/var-1966.html
