librettos
nounUK /lɪˈbrɛtəʊz/
US /lɪˈbrɛtoʊz/
The words that people sing in an opera or a musical show.
The composer wrote the music, and his friend wrote the librettos for all three operas.
OTHER MEANINGS
2. The written text of a long musical work such as an oratorio.
The choir rehearsed the librettos before the concert.
3. A book or booklet containing the words of an opera or musical.
She bought two librettos at the theater gift shop.
4. The story or plot outline that a musical work is based on.
The librettos for these shows are drawn from old folk tales.