Even as Art was fully impacted by the MS, when he couldn't play an instrument any more, he could still talk, and his voice still had that quality that you hear in his music. It came through on the phone. Paxton's "I Can't Help But Wonder Where I'm Bound" gives you a chance to hear it (without audience noise that is on a lot of other songs posted at YouTube).

There's a lot of Art Thieme on YouTube.

SRS