 By the second decade of the 17th century, the idea of cultivating the "stile antico" (as exemplified by the music of Palestrina) had become a conscious effort at historicism on the part of composers of the "seconda pratica", or "stile moderno".Francesco Soriano revived Palestrina's "Missa Papae Marcelli" (with "improvements") in 1609, and the next year Claudio Monteverdi, until then a staunch adherent of the "stile moderno", composed his "Missa in illo tempore", a parody mass based on a motet first published in 1538 by Nicolas Gombert.Monteverdi published his mass together with his "Vespro della Beata Vergine", a sharply contrasting work of the "seconda pratica" .