Soprano voice,Vocal Solo - Level 3 - Digital Download SKU: A0.961063 Composed by Gratiani, Bonifatio. Arranged by Dr. Burkhard Switaiski. Baroque,Christian. 130 pages. Burkhard Switaiski #5019523. Published by Burkhard Switaiski (A0.961063). Motets for Soprano voice and organ/b. c.  ContraPunctum Urtext edition.