Originally Posted By: Mark Hayes


It is possible to generate fun puzzles, at least that are puzzling to me.

Here I have a piece that begins with D#, continues to F#, then ends on F.

I called it key of Em, BIAB wants to call it key of Bb.

Why???

I'm guessing it's calling D#/Eb = IV and F = V and ignoring the F#?



The message says "it is likely Eb". It does not say that it is Eb. It is only a suggestion. YMMV


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64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware