being prepared for performance in the 1639–40 carnival. In keeping with the general character of Venetian opera, the work was written for a small band—around five string players and various continuo instruments. This reflected the financial motives of the merchant princes who were sponsoring the opera houses—they demanded commercial as well as artistic success, and wanted to minimise costs. As was common at the time, precise instrumentation is not indicated in the score, which exists in a single handwritten manuscript discovered in the Vienna National Library in the 19th century. A study of the score reveals many characteristic Monteverdi features, derived from his long experience as a composer for the stage and of other works for the human voice. Rosand believes that rather than casting doubts on Monteverdi's authorship, the significant differences between the score and the libretto might lend support to it, since Monteverdi was well known for his adaptations of the texts presented to him. Ringer reinforces this, writing that "Monteverdi boldly reshaped Badoaro's writing into a coherent and supremely effective foundation for a music drama", adding that Badoaro claimed that he could no longer recognise the work as his own. Contemporaries of the composer and the librettist saw an identification between Ulysses and Monteverdi; both are returning home—"home" in Monteverdi's case being the medium of opera which he had mastered and then left, 30 years earlier. Authenticity Before and after the publication of the score in 1922, scholars questioned the work's authenticity, and its attribution to Monteverdi continued to be in some doubt until the 1950s. The Italian musicologist Giacomo Benvenuti maintained, on the basis of a 1942 performance in Milan, that the work was simply not good enough to be by Monteverdi. Apart from the stylistic differences between Il ritorno and Monteverdi's other surviving late opera, L'incoronazione di Poppea, the main issue which raised doubts was the series of discrepancies between the score and the libretto. However, much of the uncertainty concerning the attribution was resolved through the discovery of contemporary documents, all confirming Monteverdi's role as the composer. These documents include a letter from the unknown librettist of Le nozze d'Enea in Lavinia, which discusses Monteverdi's setting of Il ritorno. There is also Badoaro's preface to the Il ritorno libretto, addressed to the composer, which includes the wording "I can firmly state that my Ulysses is more indebted to you than ever was the real