West Side Story - Prologue

This video tells you about the two groups called the Sharks and the Jets hating eachother like enemies. Their type of dancing is very cheesy and expressionate. The type of music sounds like 1950s which is like a jazzy, jive, with all the clicking with the fingers to create the sounds to the music to give it a beat. The groups are having fun laughing and joking with everyone until they meet their enemies then the music changes suddenly with a signal beat like dum-dum in a lower pitch. Also the music is orchestral.