Instrumental Duet Instrumental Duet,Organ,Trumpet - Level 4 - Digital Download SKU: A0.1005670 Composed by Rudy Volkmann. Baroque,Concert,Contemporary,Praise & Worship,Sacred. Score and parts. 3 pages. Rudy Volkmann #6428565. Published by Rudy Volkmann (A0.1005670). This is a trumpet/organ version of a Baroque-sounding processional I have published in several different genre.  In the brass quintet version I scored the stirring countermelody for the French Horn; accordingly, the organ's choir settings might want to be set for the alto/tenor register - but that choice is left to the organist.