Definition of libretto:
- book (part of speech: noun)
- "The Way of Ambition", Robert Hichens.
Wagner submitted his libretto and the score for the first acts to that famous composer, who is reported to have said, 'Rienzi is the best opera- book extant, ' and who gave him introductions to musical directors and publishers in Paris.- "Stories of the Wagner Opera", H. A. Guerber.
- "The Great Musicians: Rossini and His School", Henry Sutherland Edwards.