It’s rare that a musical synthesizes genres and influences from popular and high culture and succeeds at integrating them all, but Romeo and Bernadette does. With book and lyrics by Mark Saltzman, and music adapted from traditional Italian melodies, this show incorporates elements of Romeo and Juliet, West Side Story, and Bill and Ted’s Excellent Adventure, with a bit of The Sopranos to boot. Northern vs. southern Italian (Sicilian) class prejudices and contemporary renditions of classical Italian operas are thrown into the mix for good measure.