Final answer:
The book of a musical is not referred to as the lyrics.
Step-by-step explanation:
The statement is False. The book of a musical is not referred to as the lyrics. In musical theatre, the book refers to the spoken dialogue and the story or script of the musical. The lyrics, on the other hand, are the words to the songs in the musical, which are typically sung by the characters. The lyrics and the book work together to tell the story and convey the emotions and messages of the musical.