When I transferred my old posts here, I noticed that I'd made some mistakes in my notation of the bass part in "Summertime." I still think I have the right pitches, but I had some wrong note values. I was under the mistaken impression that the length of a whole note is equal to the number of beats in a measure no matter what the time signature is, but whole notes are actually equal to four beats. Where I had whole notes (four beats), I should have had dotted half notes (three beats).
Recently, I re-wrote the notation to correct my mistake, and I added in the guitar chords. However, this still comes with the disclaimer that I might have something wrong: