This instrument features in "Hoedown: Mad Cow" from John Adams's piece for it and a chamber ensemble, Gnarly Buttons. It is played "with motion" at the end of Brahms's quintet for it, written shortly after the first score requiring three of them, Wagner's Ring cycle. Brahms also composed two sonatas for this instrument near the end of his life, and Carl Maria von Weber wrote two concertos for it. Another piece featuring this instrument was composed with performer Anton Stadler in mind and has allegro, adagio, and rondo 
This instrument features in "Hoedown: Mad Cow" from John Adams's piece for it and a chamber ensemble, Gnarly Buttons. It is played "with motion" at the end of Brahms's quintet for it, written shortly after the first score requiring three of them, Wagner's Ring cycle. Brahms also composed two sonatas for this instrument near the end of his life, and Carl Maria von Weber wrote two concertos for it. Another piece featuring this instrument was composed with performer Anton Stadler in mind and has allegro, adagio, and rondo movements. For 10 points, one of Mozart's last works was an A major concerto for what single-reed woodwind instrument?
This instrument features in "Hoedown: Mad Cow" from John Adams's piece for it and a chamber ensemble, Gnarly Buttons.
{clarinet}