Although he is proficient with a variety of stringed instruments, Norman Blake is famous for his acoustic guitar skills -- he was one of the major bluegrass guitarists of the '70s. Blake came into view in the late '60s, when he began performing as a sideman with artists as diverse as June Carter and Bob Dylan. During the '70s, he began a solo career that quickly became one of the most popular and musically adventurous within bluegrass. He continued recording and performing -- occasionally with his wife, Nancy -- well into the '90s. Blake began playing music professionally when...