Giddins and DeVeaux on ABAC form

"Thirty-two-bar forms other than AABA have sustained consistent popularity, particularly the elegant variation ABAC, or AA'. Instead of the bridge providing contrast at the midway point, ABAC uses that moment to reprise the opening melody.
A (8 bars) statement / B (8 bars) contrast /
A (8 bars) return of statement / C (8 bars) conclusion
This form can also be seen as two sixteen-bar sections, the first ending with a half-cadence, and the second steering the harmony firmly home with a full cadence:
A (16 bars) statement /
A' (16 bars) statement with full cadence
Tunes constructed with this form include 'Star Dust' and 'Embraceable You' [available on this recording], as well as original jazz compositions from the early days in New Orleans until now. No less than AABA, the ABAC form serves as a template, suitable for different harmonic progressions" (Gary Giddins and Scott DeVeaux, Jazz, pp. 35-36).