That's strange, because I do remember seeing (blues) chords listed in the chord builder dialog window, can't remember ever using them though.
However, picking the "(Blues)" entry from the drop down menu in the chord builder window does something very strange.
It seems to ignore the parenthesis, and reads the first letter of "blues" as a flat, changing my D chord into this Db (luse) chord shocked ...

You may have stumbled across a bug there, my friend.

- Jay

MacPro 5,1/12 core@3.46GHz -- OS X 10.14.6 -- ATI 7970 -- 32 Gig RAM -- Crucial 500GB OS SSD -- Samsung EVO 1TB Audio/Sample SSD -- BIAB 2023 -- Logic Pro X -- Cubase Elements 11 -- Too many plugins