I might be stuck now. I started adding the chord notations and got stuck around the middle of page 2, as you can see from the attachment.
The bridge:
1 DbMa9
2 Gb13#11
3 DbMa9
4 Gb13#11
5 Ami7 . Eb13#11
6 D7#9
7 Gmi7 . Db+7
8 C9(add13) . Gb
The bridge then resolving to FMa9(add13)
These first chords may be analyzed a couple of ways. I like to think of the first two measures as bVIMa7 - bII7, i.e., Db = flat six, Gb = flat two) where the flat two dominant doesn't immediately resolve chromatically back to tonic on F as one would expect.
Instead, we have a pair of ii-V's heading back to tonic:
Ami7 - D7#9, with Eb13#11 a tritone sub of Ami7 (or A7, if you want to get technical), resolving down to D7#9
Gmi7 - C9(add13), similar to above, with Db+7 a tritone sub of Gmi7, resolving down to C9(add13)
At the end of the 8th measure we have a simple Gb triad as a tritone sub of C9(add13), resolving down to tonic.
Typical, very nice jazz harmony.
