found: His Sonata for clarinet and piano, c1943.
found: Baker, 6th ed. (Bernstein, Leonard; b. 8-25-1918; pseud.: Lenny Amber)
found: Haydn, J. Messa si bemolʹ mazhor, Hob. XXII no. 14 [SR] 1978?: label (Leonard Bernstaĭn, conductor)
found: Washington post, 10-15-90: p. 1 (Leonard Bernstein; d. New York, 10-14-90)
found: Jewish holiday dances [SR] 1947?: labels (L. Bernstein) container (Leonard Bernstein)
found: Bernstein, L. To Lenny with love [SR] 1991?: label (Lenny; Leonard Bernstein)
found: Official Leonard Bernstein web site, Feb. 8, 2006 about Bernstein (Aug. 25, 1918-Oct. 14, 1990)
found: Read more: Leonard Bernstein Biography - life, family, childhood, name, story, history, wife, school, old, information, born, college http://www.notablebiographies.com/Be-Br/Bernstein-Leonard.html#ixzz1oNsFiF4w
found: Encyclopedia of World Biography, via WWW, Mar. 6, 2012 (an American composer, conductor, and pianist)
found: Wikipedia, via WWW, Mar. 6, 2012 (b. Louis Bernstein, Aug. 25, 1918 in Lawrence, Mass.; B.A., Harvard University, Music, 1939; Curtis Institute of Music; d. Oct. 14, 1990 in New York)
found: The New York Times, via WWW, Mar. 6, 2012 (died in Manhattan, N.Y.; a high-profile figure in symphonic music, Broadway musicals, the ballet, films and television)