It would have been easy to simply plug in 1940s pop standards. But instead Richard Oberacker and Robert Taylor created a swinging original score that not only captures the period style but also digs deep into the characters. The music is so tightly integrated into the script that 'Bandstand' becomes unusually powerful musical theater. Its reinterpretation of the traditional 11 o'clock number is both smart and electrifying. Andy Blankenbuehler, who rose to prominence as the choreographer of 'In the Heights' and then 'Hamilton,' does a stunning job as both director and choreographer.