Alan

Isn't a 6th considered the same for either Bb6 or BbMaj6?

Certainly you can have a BbMaj7 and a Bb7 and a Bbmin7.

But when it comes to 6th's I'm not aware of the same rule applying. I thought that essentially Bb6 was the same as BbMaj6. There should be 9 semitones between the root and the 6th (except for a minor 6th, which has an interval of 8 semitones).

Does a Bb6 give you what you need? I think it's the same in your case.

Incidentally, for a list of available chords in BiaB, right-click on the chord cell and choose Chord Builder (Control-Shift-B)

HTH

Trev





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