Mozart, Wolfgang Amadeus. (1756–1791) "Partitions des dix principaux Quatuors pour deux Violons, Alto et Violoncelle, composés par W. A. Mozart. No. 6" ["The Dissonance," K. 465]8vo. 31 pp. Lithographed. [PN] 4786. Printed score for Mozart's String Quartet No. 19 in C major, K. 465, the last of six quartets composed from 17821785 dedicated to Joseph Haydn. Ownership label from Mr. Alfred Burnett to inside cover. Disbound, gatherings separated, front blue paper covering with label and later price notation in ink, rear cover lacking. "Mozart began work on six quartets of his own, which he completed in January 1785. He dedicated