This composer responded to an official reprimand by writing several baryton trios for a prince to perform. A melody beginning (read slowly) “long G, short A, B, A” appears in the Poco adagio second movement of a piece by this composer dedicated to Count Erdödy. (-5[1])This composer wrote collections nicknamed “Russian” and “Sun” while employed by the (10[1])Esterházy court. It’s not Beethoven, but a piece by this composer nicknamed “Emperor” was (10[1])the basis for the national anthem of Germany. This composer is credited with pioneering (10[1])a chamber music genre where a cello and viola are joined by two violins. For 10 points, name (-5[1])this Austrian “father of the (10[1])string (10[2]0[1])quartet.” ■END■