Final answer:
Dark musicals are characterized by somber and unsettling themes, intense and dissonant music, and complex characters. Examples include 'The Phantom of the Opera' and 'Les Misérables.'
Step-by-step explanation:
Dark musicals are characterized by somber and unsettling themes, often exploring themes of death, tragedy, and psychological turmoil. They may feature complex and morally ambiguous characters, as well as intense and dissonant music to evoke a sense of unease and foreboding. Examples of dark musicals include 'The Phantom of the Opera' and 'Les Misérables.'