Major Hochstetter had a lighter side?

Howard Caine, the actor who played Gestapo Major Hochstetter on Hogan's Heroes, played the banjo. According to Wikipedia, he grew up in Tennessee, and from childhood has been fascinated by the instrument. "From the summer of 1970 until his death in 1993, he had taken trophies at 29 prominent banjo and fiddle contests in the southland for both Best Traditional Banjo and Traditional Singing. He was also a popular folk singer and appeared at a number of prominent folk clubs and folk festivals."