This instrument accompanies the aria “Parto, parto, ma tu, ben mio” (15[1])from La Clemenza di Tito. Ravel remarked that he wrote the slow movement of his G major piano concerto while “under the spell” of the Larghetto from a Mozart chamber piece that features this instrument. (15[1])In the Adagio movement of a concerto for this instrument, the soloist enters immediately with the notes [read slowly] “A, long D [pause], F-sharp F-sharp E D.” This instrument joins viola and piano in Mozart’s (*) “Kegelstatt” trio. (10[4])Brahms and Mozart both (10[1])wrote late quintets (10[1])for this (10[1])instrument and string quartet, respectively for Richard Mühlfeld (-5[1])(“REE-card MOOL-felt”) and Anton (10[3])Stadler. It’s not horn, (-5[1])but Mozart’s last instrumental work was an A major concerto for the (10[1])“basset” variant (10[1])of this instrument, which is pitched in A rather than the usual B-flat. (10[3])For 10 points, name this single-reed (10[1])woodwind. (10[2])■END■ (10[4]0[1])