That's a conceptual thing that seems 'obvious' to any of us over say, 35(?).
But listen to a lot of modern rock - the
'solo' sections are many times, different than the tune. Why? I have no f'n idea but that's what they're used to - it's a different part of the song so in their minds/experience - it's different.
But yeah - that's the $hite you go over at rehearsal; form, endings, breaks.
*I mentioned
beating the dead horse because I've got a rehearsal tonight with a bunch of good players who still feel that they/we need to go over every tune, every rehearsal. It's almost security blanket
ish.
The ironic (and funny to me) thing is that everybody will blow 'something' on the gig that they
nailed in rehearsal. That's just the nature of performing - no 'perfect' shows. Oh, and we have to take a long break

. (But the other 3 guys like the long break and the
running of the set so ... )