Surrexit Pastor Bonus (The Good Shepherd is Risen) is an Easter motet by Orlando diLasso (one of the great composers of the late Renaissance). The rising theme clearly indicates the mood of the work; the imitative counterpoint makes this a great piece for brass sextet and brass choir.
It is also available as a brass quintet, found on my Brass Quintets page.
Surrexit Pastor Bonus is not recorded as a sextet, and the mP3 is of a live recording of a brass choir performing this arrangement.
Surrexit Pastor Bonus for brass sextet is unpublished and available for $18.00 for hard copy, or $15.00 for the pdfs