Composer : Mozart.
Composition : "Mozart string quartet no.19 in C major ("Dissonance"), Movement 2"
The "dissonance" quartet is the final in a set of 6 string quartets
composed between 1782-1785, dedicated to Joseph Haydn.
The first movement is a sonata-allegro with an adagio introduction
(from which the nickname "dissonance" derives),
the second movement is an adagio in an adapted sonata form,
followed by a minuet and trio for the third movement,
with another sonata allegro for the finale.