Billy actually played on a few of Grant's recordings. He spent many years gigging around Indianapolis in the 60's and is still playing (vibes). I've met him several times and he's a very interesting guy. I talked to him for a couple hours one night after a show about the music biz, race relations and other social issues; as I said, very interesting. He doesn't play many club dates anymore, mostly private events. He e-mails me occasionally about upcoming gig, I hope to see him again soon. The Wooden Glass LP you show was his claim to fame!
Mark