libretto
nounUK /lɪˈbrɛtəʊ/
US /lɪˈbrɛtoʊ/
The words that go with the music in an opera or a musical show.
She read the libretto before watching the opera so she could follow the story.
OTHER MEANINGS
2. The text of a long musical work such as an oratorio or cantata.
The choir rehearsed the libretto of Handel's Messiah.
3. A small book containing the words of an opera or play.
He bought a libretto at the theater to read along during the performance.
4. The storyline or narrative framework of a dramatic musical work.
The libretto tells the tale of a prince searching for a lost princess.