You've very close.

BIAB was developed as a way to hear songs from jazz fakebooks. We jazz players think of chorus as once through the tune. So, a chorus might be AABA form. You've probably heard a jazz player say "take a chorus" which means, take a solo over the tune.

There are a lot of folks who don't think that way, so over the decades a few things have been added to make it easier if not exactly direct. Things like the conductor, song form selecting sections, the ability to name a section. I'm sure others are more qualified to give more examples and instructions (the jazz definition works for me).

BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.