Andrea Gabrieli (1532/1533 – 1585) was an Italian composer and organist of the late Renaissance. The uncle of the somewhat more famous Giovanni Gabrieli, he was the first internationally renowned member of the Venetian School of composers, and was extremely influential in spreading the Venetian style in Italy as well as in Germany. The Ave Regina caelorum is sung as the concluding antiphon in each of the Hours of the Daily Office during the pre-Lent and Lenten seasons, i.e. from the Feast of the Presentation (2nd February) until Maundy Thursday. This version for trombone choir has been arranged by Prof. Elliot Chasanov (University of Illinois)