Here he composed a large number of motets and sacred pieces, which, being brought under the notice of Pope Urban VIII., obtained for him an appointment in the choir of the Sistine Chapel at Rome.
Among the musical compositions of Allegri were two volumes of concerti, published in 1618 and 1619; two volumes of motets, published in 1620 and 1621; besides a number of works still in manuscript.
Though now remembered chiefly for invaluable contributions to the theory of music, it is evident that he must have been famous both as a practical musician and as a composer; for, notwithstanding the limited number of his printed works, consisting of a volume entitled Modulationes Sex Vocum (Venice, 1566), and a few motets and madrigals scattered through the collections of Scotto and other contemporary publishers, he both produced and superintended the public performance of some important pieces in the service of the republic. First among these was the music written to celebrate the battle of Lepanto (on the 7th of October 1571).
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