I'm also stating the obvious - the chart does not accurately reflect what actually occurs on the recording.
(I see that you've not answered my question.)
You're Very Welcome, Fredrik!
That's ok. I just pointed at a fact after your comment "awful harmonic transcription", which is the same as Pat Metheny uses in his book.
I belive Pat may have used the chords he himself played on the guitar, without regard to what the bassplayer should do. And there is, as he stated himself in the interview quoted earlier, "a certain sence of harmonic ambiguity". Jaco uses the A from time to time, but mostly Bb (as written several times in the thread). Now, Pat was not an educated musician at the time ("While playing at a club in Kansas City, he was approached by Bill Lee, a dean at the University of Miami, and offered a scholarship. After less than a week at college, Metheny realized that playing guitar all day during his teens had left him unprepared for classes. He admitted this to Lee, who offered him a job to teach instead, as the school had recently introduced electric guitar as a course of study"). I belive that if a educated musician had asked him what he really meant, the chart would look different.
(On the other hand, about the b5/#11: In my book, it's not uncommon to state one chord on the head (Bbma7(b5) = no 5th) and use a different chord under the solos (Bbma7(#11) = you may use the 5th the solo or voicings)).
Richard Bona uses a more traditional approach on their live recording with Antonio Sanchez. Bb's on the Bbma7(b5)/A, and a lot of F's on the same chord, Emi7 - A7 - Dma7 on the last 4 of the bridge etc. And, I absolutely love the lick on Gma7 in bar 10.