Leopold Mozart featured a high variant of this instrument in three movements of his only surviving serenade, which are often performed separately as a G major concerto. Beethoven and Bruckner both wrote funereal (“fyoo-NEE-ree-ul”) pieces for choirs of this instrument titled Equali. Beethoven’s Ninth Symphony has separate parts for this instrument’s alto, tenor, and bass varieties. An (-5[1])oft-cited myth claims that the contrabassoon, piccolo, and this instrument were introduced to the orchestra in Beethoven’s Fifth Symphony. In Mozart’s Requiem, this instrument (10[1])outlines a B-flat major arpeggio and is echoed by a bass soloist at the start of the “Tuba Mirum.” This instrument, whose tenor form is most common today, developed from the Renaissance (10[1])sackbut. For 10 points, what brass instrument controls pitch with a slide? ■END■ (10[1])