Welcome to the forum.

BIAB has one audio track. You COULD record your guitar and then add the voice to that track, but I don't recommend doing it that way. Additional live recording is best done in your DAW. However, if you bought BIAB for Windows, it came with RealBand for free. RealBand reads the BIAB tracks but also has many (48?) audio tracks to play with.


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.