@pipeline
This was Jesus music rock-n-roll at the Jesus commune I briefly stayed at in 1972, where my sister later lived for a much longer time.
Phil Keaggy's 'Glass Harp'. Keaggy went on to do a fair bit of solo stuff that was very nice, too.
The Godspell era; a fairly different brand or variety of fundamentalists back then than dominate that category today.
He's a damn good guitarist. Missing about a finger and a half, too, isn't he? Had his music around growing up. Also, Larry Norman, another free-thinking Jesus freak who was a great musician and songwriter too.
Frank Black and The Catholics covered this one later on.