32 Quartets That Can Be Played by Any Combination of String Instruments. Composed by Bernard De La Monnoye, Christopf Von Gluck, etc., J. Spilman, Spiritual American, Willy Geisler, Stephen Foster (1826-1864), Edvard Grieg (1843-1907), Engelbert Humperdinck (1854-1921), French ca…