Again, much appreciated, Glimmerman, a treasure!
For research purposes, I did a side-by-side analysis of the released track (‘Following the River’) and the backing track (‘Wally’s Whistling…’).
The released track is a very straightforward edit of ‘Wally’s’, which runs almost a minute longer. There are quantisation issues throughout, seemingly to keep the released track steady.
[Sidenote; a few bars of verse 2 in ‘Wally´s’ are cut and pasted from verse 3 before the slide part was overdubbed (is it really Taylor and not Richards??)].
Anyway, here’s the analysis:
Up until the 2:00 mark, the two tracks are identical, except that the intro is looped once in ‘Following the River’ to make room for Jagger’s first four verse lines.
At the two-minute mark, the intro is inserted again in ‘Following’, although this repeat does not exist in ‘Wally’s’. To match the increased tempo at this point, the repeated intro is sped up to 108%.
Then comes the major edit in ‘Following the River’: when Jagger enters the second verse, the backing track actually comes from the third verse of ‘Wally’s’ and runs directly into the original third chorus.
In the outro of ‘Following’, the double chorus is extended by adding a section of the second chorus from ‘Wally’s’.
