Vincenzo Ruffo (c.1508 - February 9, 1587) was an Italian composer of the Renaissance. He was one of the composers most responsive to the musical reforms suggested by the Council of Trent, especially in his composition of masses, and as such was an influential member of the Counter-Reformation. Vincenzo Ruffo was born at Verona, and became a priest there in 1531. Most likely he studied with Biagio Rossetti, the organist at the cathedral in Verona. Wikipedia
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