Instrumental Duet Cello,Instrumental Duet,Organ - Level 5 - Digital Download SKU: A0.1014237 Composed by Maryliz Smith. Concert. Score and parts. 11 pages. Maryliz Smith #6103543. Published by Maryliz Smith (A0.1014237). For organ and cello, this piece is based on Hildegarde von Bingen's style of chant. The two instruments play back and forth with their parts of the chant.