[li-bret-oh] 
[-bret-ee] . | 1. | the text or words of an opera or similar extended musical composition. |
| 2. | a book or booklet containing such a text. |
| li·bret·to (lĭ-brět'ō) n. pl. li·bret·tos or li·bret·ti (-brět'ē)
[Italian, diminutive of libro, book, from Latin liber, libr-.] |
libretto
text of an opera, operetta, or other kind of musical theatre. It is also used, less commonly, for a musical work not intended for the stage. A libretto may be in verse or in prose; it may be specially designed for a particular composer, or it may provide raw material for several; it may be wholly original or an adaptation of an existing play or novel.
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