Leonard Bernstein dubbed into other languages. All of them were released on DVD by Kultur Video (half of them in 2013). Around the time he was appointed music director of the New York Philharmonic, and living opposite Carnegie Hall at The Osborne, Bernstein composed the music for two shows. The first was for the operetta "Candide", which was first performed in 1956 with a libretto by Lillian Hellman based on Voltaire's novella. The second was Bernstein's collaboration with the choreographer Jerome Robbins, the writer Arthur Laurents, and the lyricist Stephen Sondheim to produce the musical "West Side Story". The first three had
Stephen Sondheim told him he was working on a musical version of "Romeo and Juliet" with Leonard Bernstein, but they needed a lyricist; Betty Comden and Adolph Green, who were supposed to write the lyrics, were under contract in Hollywood. He said that although he was not a big fan of Sondheim's music, he enjoyed the lyrics from "Saturday Night" and he could audition for Bernstein. The following day, Sondheim met and played for Bernstein, who said he would let him know. The composer wanted to write music and lyrics; after consulting with Hammerstein, Bernstein told Sondheim he could write music later.