so i guess i'm on a harry connick kick this week.
this tune starts with solo voice and then the piano comes in on dotted-eights +sixteenths . they then trade off between voice/piano and bass. there's a great walking bass line randomly in here. i like the orchestration of this piece. the sparse instrumentals really send the vocals out to focus.
then there's a piano solo with bass accompaniment. because of the percussive nature of the bassist, there's no need for a full rhythm section.
when the vocals come back in the piano and bass keep playing their jive for about 8 bars. (this can be the transitory section). after that we're in our A section, full swing.
i'd say that this is rounded binary ending on a PAC.
i love harry connick, jr. and you should, too!!