Part 4 of DaPonte Onstage: Mozart String Quartet in C Major Fri, 04/16/2021 - 1:00pm DaPonte Onstage. (Photo courtesy DaPont String Quartet) Part four of the DaPont String Quartet’s “Onstage” six–part concert series premieres on April 24, with Mozart String Quartet in C Major, at onstage.daponte.org. Filmed at the Rockport Opera House in early 2021, the April 24 concert release is a work from 1785 by Wolfgang Amadeus Mozart, which was dedicated to Haydn. This quartet in four movements, nicknamed “Dissonance”, is among the greatest quartet compositions in history, according to DSQ, in a news release. The first movement establishes the dissonance early, through a brooding lack of harmonic resolution – a civilized, yet anxious, conversation amongst four voices.