Try this:
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This is converted pretty much verbatim from a Band Score I acquired & sounds fairly close. As usual I won't claim 100% accuracy, but hopefully it's enough for the job.
Most of 'One After 909' is essentially a I-IV-V, but then surprises you by going straight up to the IV after the chorus (the "Pickup my bags" bit, which runs IV-I-II-V).
So... by the numbers...
Intro:
(Rest) I, I, I, I, I, I, I,
Chorus:
I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I,
Stop (I), Stop (I),
IV, IV, IV, IV, I, I, V, V, I, I, I, I
(Repeat)
Verse:
VI, VI, VI, VI, I, I, I, I, II, II, II, II, V, V, V, V,
(Repeat)
Chorus
Solo(Same as the Chorus)
Verse
Chorus with a "three times 'round the block" ending.
Macca keeps it pretty simple with a R-5 line & some straightforward little walks to join the bits up.
There's more than a few country-r'n'r tunes that have this 'surprise IV' (Steve Earle's
'Snake Oil' & Bob Seger's
'Get Out Of Denver' spring to mind, & Jerry Lee's no stranger to it either), so the structure's a good one to have in the toolbox.
I've got the "score" for 'When I'm 64' too, might have a crack at extracting that one tomorrow.
Pete.