BIAB treats B11 as B9sus4 (written B9sus). You have the option of which way it is displayed in Display Settings. And, as you've already discovered, Badd11 is not a supported chord type.

Along with what John and VideoTrack said, just try the chord types in BIAB that are supported, and see if you find the right sound. To find all supported chord types, right-click in a cell and select Chord Builder. Then click on the box with 'sus4' in it to reveal all supported types.

If you can spell the chord tones you want, that will help us.


BIAB 2024 Win Audiophile. Software: Studio One 6.5 Pro, Swam horns, Acoustica-7, Notion 6; Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus Studio 192, Presonus Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors