Motet for Double Choir (S.S.A.T.B. And S.A.T.B.B.), A Cappella. By Hans Leo Hassler. Edited by Maynard Klein. For SSATB Chorus, SATBB Chorus, Organ Rehearsal. Early Choral Masters. Piano/Vocal Score. 24 pages. Duration 3:30. Published by Theodore Presser Company.