Here is a lovely version of Monteverdi's magnificent "Domine ad adjuvandum me festina" (Lord, Help Me Now) from the Vespers of 1610 (the most ambitious piece of liturgical music before Bach).
Below is a version that is far more visually stunning, set as it is in a Gothic cathedral in Lisbon. However, in this one you can't hear the instruments very well, and it's those highlights on the upper brasses that really make the piece, at least for me. Also, you might find the tempi a little draggy. The conductor's enthusiasm, however, is infectious.