Q: And does this line having parallels in the music, where the F from the f#maj7 carries over into the Ab chord froming a major 6,have any significance?
A: that's just the vibe of that chord vamp, which pretty much works the same way in all those bridge sections. it does seem to be hanging onto something. or at least considering hanging onto something. maybe reaching for a second opinion as to whether or not to hang onto something