Hi again.

When you say...

Quote:
Bb/C (C7sus 4, in fact): C is the root, 5th is the third of the Bb major triad, in this case it plays C and D which is C2 and not C7sus. So, alas, no solution here.


I thought it wise to clarify that BIAB is actually playing what you want.

Bb/C = C9sus4 or C11 and not C7sus4. This is because the D in Bb is the 9th in the C scale. Arguably the D could be a 2nd in C, as you correctly indicate, but since it's a couple of octaves away from the bass note, it's usually referred to as a 9th.

I cannot think of a way to use slash chords with simple majors or minors to get an X7sus4 chord.

C7sus4 = C-F-G-Bb

Regards,
Noel


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