This document provides context and background information about the song "Something's Coming" from the musical West Side Story, composed by Leonard Bernstein. It discusses Bernstein's background and influence of jazz and Latin American music. It describes West Side Story as a modern adaptation of Romeo and Juliet, set among rival New York gangs. The document analyzes the melody of "Something's Coming", noting it is in the key of D major sung by a tenor voice, contains intervals like the tritone, and has a diatonic yet expressive melody. It encourages learning the song's melodic themes and intervals.