Thanks, Murray -- my bad.

It should be only too obvious that:
(1) I am still much less than conversant with non-standard tunings, and
(2) that I hadn't even tried to retune and start reading the tablature when I made that last post. Of course, I could have tuned to the major chord by ear without realizing that the G-string had been tuned down to F#, not F.

Mistaking B-minor for D-minor, of course, is certainly understandable, since B-minor is the relative minor for key of D.