SCHNEIDER, ALEXANDER (1908–1993), violinist. Born in Vilna, Schneider became leader of the Frankfurt Symphony Orchestra. Immigrating to the United States in 1933, he joined the Budapest Quartet as second violinist until 1944, and again from 1957, and formed several other chamber music ensembles. Together with the cellist Pablo Casals, he established the annual festivals held at Prades in the Pyrenees from 1950 onward and in Puerto Rico from 1957. He conducted at these festivals and also visited Israel for the summer music festivals.