[Gilbert, W.S. (1836-1911) & Sullivan, Arthur. (1842-1900)] Sullivan, Arthur. (1842-1900) Autograph Letter regarding the Song "St. Agnes' Eve."Autograph letter of the British composer best known for his collaborations on more than a dozen classic comic operas with librettist W. S. Gilbert. 2 pp (recto verso), dated December 6, 1879. Sullivan writes to a Mr. Day, in part: "I hope you received the music safely I cannot get a harp part of "St. Agnes' Eve" and unless Miss Abell has one, I do not know what we can do. It is a most essential feature in the song, + we can scarcely do it without the