For 10 points, name this composer of Candide and West Side Story.
A work by this composer was the basis for Symphonic Dances orchestrated by Irwin Kostal and Sid Ramin including "Mambo" and "Cha-Cha". In one of his works, one singer depicts both Julia Grant and Lucy Hayes after the election of 1876 in "Duet for One". Hildy the taxi driver sings "I Can Cook Too" in a work by him in which three sailors on shore leave sing "New York, New York". The Old Lady sings "I Am Easily Assimilated" in a work by him that includes "Glitter and Be Gay". This composer of 1600 Pennsylvania Avenue and On the Town wrote the music for a work in which a character suggests that "Miss America should just resign" in "I Am Pretty", while Tony claims there's "music playing" if you say her name loud in the song "Maria". That musical depicts the gang rivalry between the Sharks and the Jets. For 10 points, name this composer of Candide and West Side Story.
A work by this composer was the basis for Symphonic Dances orchestrated by Irwin Kostal and Sid Ramin including "Mambo" and "Cha-Cha".
Leonard Bernstein