Set of 20 well written, short to medium length quartets (numbers 21 through 40) in classic four-part form. Drawn from mens choir, operatic, folk and other sources. Includes works by Mozart, Schubert, Weber, Schumann, Malan, Neefe, Otto, Gluck, Zollner and Hauptmann. Set of 4 parts. No score. All bass clef. Books are 9.5" x 6.5: (24 x 28cm).