Eb (opt.),3 Bb, Eb Alto, Bb Bass/Contra-Bass, Eb Contra-Alto (opt.). Issued in 1966, this challenging, contest-caliber setting of one of Mozart's top hits assigns the primary leading role to the 1st Bb player. An allegro tempo in cut time should be maintained throughout. Short divisi passages in the 2nd Bb part indicates that two players may be used. Duration 4:30 American Grade 5