Appalachian Folk / Bluegrass / Classical Period 1982 LP, Cassette Studio Rounder 165 Mark O'Connor On this album Mark O'Connor is the arranger, composer, producer and only artist. Over dubbing himself on the cello, viola, 12-string guitar, fretless bass, mandola, mandocello, soprano guitar, bass, dobro, fiddle, guitar, mandolin, violin, and percussion.