Hey I thought the pianist, and the guitarist did a fine job. Made all of the right chord changes, used diminished chords in the right spots and it seemed like I heard a b9 on the 6 chord which I do 96% of the time in jazz standards. Like Don said, he sang in key.
Mark you obviously do not like the guys voice and no CM at all ha ha. The guitarist on his fill-ins didn't sound country to me at all. I'd bet money he plays with jazz pros every chance he gets. I thought his licks were impressive. Of course I'm not Coltrane, Rollins or Dexter Gordon, so what do I know.
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I'm not prejudiced, I hate everybody!! Ha ha! My Sister-In-Law had this tee shirt. She was a riot!!!