[20] Two librettos of Arianna were printed in Venice, one in 1639, the other in 1640. The earlier, L'Arianna: Tragedia del Signor Ottavio Rinuccini . . . rappresentata in musica (Venice: Salvadori, 1639), appeared without the composer's name—and very possibly, therefore, without his approval. It surely did not correspond to a Venetian performance, but merely reprinted the original text of 1608 verbatim. The 1640 libretto, however, L'Arianna del Sig. Ottavio Rinuccini, posta in musica dal Sig. Claudio Monteverdi, rappresentata in Venetia l'anno 1640 (Venice: Bariletti, 1640), clearly corresponded to a performance in that year. Monteverdi had already expressed a desire to alter Arianna for a performance in Mantua in 1620, which apparently never took place (cf. letters of 17, 21, and 28 March 1620 in Claudio Monteverdi: Lettere, dediche, e prefazioni , ed. Domenico de' Paoli [Rome, 1973]).