Judex Crederis is the last movement of the Te Deum and represents one of Berlioz's most dramatic works. As with many of Berlioz's large works, the trombone plays a prominent role in the movement. After the spectacular organ introduction, the brass enters, led by the six trombones in a brief fanfare that introduces the chorus. This glorious moment inspired the arrangement for a monumental 16-part trombone choir with organ. The original trombone parts are included essentially unchanged, with the other parts covering the chorus and instruments. The work, arranged by Marc Williams, is intended for accomplished performers and provides ample musical challenges and rewards for the performers and audience alike. -the publisher