The small o means diminished. Type "dim". Example: Bbdim or G#dim

In BIAB, in most styles, a dim chord will sound as a dim7 chord.

There is more to this topic, if you need details. It would probably be better to use the BIAB forum, rather than this Woodshedding one.


BIAB 2026 Win Audiophile. Software: Fender Studio One 8, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Fender Quantom HD8 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.