Trombone Duet Trombone - Level 3 - Digital Download SKU: A0.1495686 By Richard St. Clair. By Richard St. Clair. Arranged by Richard St. Clair. 21st Century,Chamber,Christian,Contemporary,Instructional. Score. 2 pages. Richard St. Clair #1072212. Published by Richard St. Clair (A0.1495686). This spirited fanfare begins with a solo statement by the tenor trombone, then joined halfway through by the bass trombone and ending in a brilliant duet. Suitable for any occasion, religious or secular.