[title of show] (Review)

[title of show] revels in the musical genre with self-referential songs like “Untitled Opening Number” and “Secondary Characters,” and it wrestles with the double-edged sword of subject matter (“Monkeys and Playbills”) and paralyzing self-doubt (“Die Vampire, Die”). New Edgecliff Theatre has pulled together a strong case of singing actors who fill its 90 minutes with nonstop entertainment.