He also plays guitar, bass, percussion instruments, saxophone, clarinet and ukulele. The first woodwind player doubles on tenor and alto saxophones, flute and clarinet. A reed quintet is made up of an oboe, clarinet, saxophone, bass clarinet, and bassoon. The second reed doubles on oboe, English horn, clarinet, and alto sax. Underwood contributes flute and multiple saxophone, clarinet and keyboard parts. He also studied the clarinet, trombone and harmonica. The second woodwind part doubles on tenor and baritone sax, clarinet, and bass clarinet. The baritone saxophone uses a single reed mouthpiece like that of a clarinet. He plays a wide variety of wind instruments, including saxophone, flute, clarinet. New instruments such as the clarinet, saxophone, and tuba became fixtures in orchestras. Stephen played bass, piano, clarinet and organ. He later learned to play the clarinet and saxophone. He learned to play cello, clarinet, and guitar. His Concerto for Clarinet, Viola, and Orchestra, Op. He is a vocalist in addition to playing guitar, bass, oud, flute, clarinet and tablas.