Pl. libretti. [It. = ‘little book,’ f. libro book.] The text or ‘words’ to which an opera or other extended musical composition is set; = BOOK sb. 8.

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1742.  Richardson, Pamela, IV. 113. If the Libretto, as they call it, is not approved, the Opera … will be condemned.

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1845.  Athenæum, 22 Feb., 204. The libretto, on the subject of Blue Beard, by Tieck.

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1880.  Ruskin, Arrows of Chace, II. 281. The libretto of Jean de Nivelle is very beautiful, and ought to have new music written to it.

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