Short answer: we users don’t know how it works. It’s proprietary knowledge.

Medium length answer: I wouldn’t worry about what user MusicVillisn was saying; I’m not even sure I follow it, but I’m pretty sure it does not relate directly to what you are asking.

Longer attempt: we users know that RealTracks are recorded by pros over chord changes. We do not have those chord changes. We know RealTracks when played back may use 1, 2, 4, or 8 measures of a phrase selected by the program and pieced together to fit your chord progression. It would make sense that the more conventional the progression the less chopping and stitching would be done. It would also make sense that if you took some beautiful lyrical playing and forced it to fit a jarring chord progression, you might not like the result. However, it seems enough phrases are recorded that something will usually play, and if as Rustyspoon said if you have BIAB 2024 or later, you can regenerate particular sections until you get some playing you like better.

Styles are just a curated collection of RealTracks that PG Music thinks work well in a particular genre and tempo. I often just build my own set of ReslTracks then save the custom style.

I’ll let someone else comment on Soloists( I don’t need to use them.

Was that any help? I don’t think we are at the level yet where examples are needed.

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.