You want to see virtuoso? Check out
Richard Galliano on the concertina.... Waltz for nicky is one of my favs. (Accordion Derail)
Idk about the steely dan budget jazz chords....wtf does that even mean. So many ways to play a chord.....you can really call shit whatever you want. It really depends on what else you have in the piece.
I like to think most people can appreciate musicians with virtuoso talent regardless of instrument, style, or education.