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In page Antonio Vivaldi:

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The resurrection of Vivaldi's unpublished works in the 20th century greatly benefited from the noted efforts of Alfredo Casella, who in 1939 organized the historic Vivaldi Week, in which the rediscovered Gloria (RV 589) and l'Olimpiade were revived. Since World War II, Vivaldi's compositions have enjoyed wide success. Historically informed performances, often on "original instruments", have increased Vivaldi's fame further still.[citation needed]