Re: A7b6b13 in Dminor

I would think that singers would tune the chord to
be both simple harmonically and to reflect the target.

shown as

relative interval within A7 chord
note name
absolute interval from D minor

I would expect

5/4 6/5 32/27 6/5 3/2
A C# E G Bb F
3/2 15/8 9/8 4/3 8/5 6/5

or

5/4 6/5 6/5 32/27 3/2
A C# E G Bb F
3/2 15/8 9/8 27/20 8/5 6/5

One could think about

5/4 6/5 7/6 32/27 3/2
A C# E G Bb F
3/2 15/8 9/8 21/16 14/9 7/6

but I doubt anyone would not feel that the G was flat, and
having the F 'move up' to the F in the target would sound
intriqueing as well.

BUT... it depends on the voicing. Shown "straight up",
I think the fifth Bb-F will be tuned. But in other
voicings, the tuning of the diminshed seventh chord
may dominate.

Bob Valentine