Program Two, “Fathers and Sons,” helps contextualize Mozart among his older contemporaries. His first significant violin sonata (K296), the first of his Viennese Quartets, and several of his earliest arias and songs will be heard alongside violin duets by his father and primary teacher, Leopold Mozart, a composer-violinist who authored a seminal treatise on his instrument; the “Sonata d’intavolatura” for keyboard by prominent Italian composer Giovanni Battista Martini, who mentored Mozart as a child; the Sextet in C by Johann Christian Bach, a student of Martini’s known as the “London” Bach, who greatly influenced Mozart; and the sixth “Prussian Sonata” by J. C. Bach’s half-brother Carl Philipp Emanuel Bach, a leading proponent of Empfindsamkeit (“sensitive style”), whom Mozart held in especially high regard, saying: “He is the father, we are the children.”