American musicologist, author, record producer, radio host, and label owner from Maryland.

Founded the labels [l73607] and [l193430], and co-founded Bluegrass Unlimited magazine. Produced and annotated the fifteen-LP series [l490072] for [l302214].

Published the multi-volume Ethnic Music on Records: A Discography of Ethnic Recordings Produced in the United States, 1893 to 1942 as well as Country Music Sources, with Meade & Meade and Banjo on the Mountain: Wade Mainer’s First Hundred Years, with Stephen Wade.

Also associated with Spottswood Music Co