Leonard Bernstein ( BURN-styne; August 25, 1918 – October 14, 1990) was an American conductor, composer, pianist, music educator, author, and humanitarian. Considered to be one of the most important conductors of his time, he was the first American conductor to receive international acclaim. According to music critic Donal Henahan, Bernstein was "one of the most prodigiously talented and successful musicians in American history". He was the recipient of many honors, including seven Emmy Awards, two Tony Awards, 16 Grammy Awards including the Lifetime Achievement Award, and the Kennedy Center Honor.As a composer, Bernstein wrote in many genres, including symphonic and orchestral music, ballet, film and theatre music, choral works, opera, chamber music and works for the piano. His best-known work is the Broadway musical West Side Story, which continues to be regularly performed worldwide, and has been adapted into two (1961 and 2021) feature films. Bernstein's works include three symphonies, Chichester Psalms, Serenade after Plato's "Symposium", the original score for the film On the Waterfront, and theater works including On the Town, Wonderful Town, Candide, and his MASS.