an Entity references as follows:
Gerhard Unger (November 26, 1916 – July 4, 2011) was a German lyric tenor. Born in Bad Salzungen, he studied in Berlin and began singing concerts and oratorios in 1945, once the war was over. Unger made his debut as an opera singer in 1947 in Weimar. From 1949 to 1961, he sang with the Berlin State Opera. When the Berlin Wall was erected, he left for Stuttgart. After 1951 Unger sang regularly at the Bayreuth Festival. One of his signature roles was David from Die Meistersinger von Nürnberg, which is documented on several recordings, including with Herbert von Karajan (1951), Rudolf Kempe (1951 and 1956), Hans Knappertsbusch (1952), Hans Rosbaud (1955), and Rafael Kubelík (1968), as well as a DVD of a 1970 performance conducted by Leopold Ludwig. Equally known was his Pedrillo in Mozart's D