Hi Ian,

B11 is also interpretted by BIAB as B9sus4 or, more simply, B9sus. There's a setting in Display Options to show it as either B11 or B9sus...



Also, with 'sus' chords, the 4 is often left understood. So if you see a Csus chord, it's really meaning Csus4. (See image above.)

Regards,
Noel


MY SONGS...
Audiophile BIAB 2026