Instrumental Duet,Piano Bassoon,Flute,Instrumental Duet,Piano - Level 4 - Digital Download SKU: A0.687775 Composed by Michael W. Smith. Arranged by Fernando Britto. Praise & Worship,Spiritual,Wedding. Score and parts. 6 pages. Minhas Partituras #6593663. Published by Minhas Partituras (A0.687775). Arrangement of the song Agnus Dei (Michael W. Smith) for Flute & Bassoon Duo and Piano Accompaniment.