(1) My one carp with the piece is that it relies a bit too heavily on antiphony , a natural device for two choirs.(2) Due to textual antiphony , the choice ultimately rests with the individual reader.(3) Though here, too, there is the braggadocio of the blues persona, Cortez employs less antiphony in her own voice, using instead a softer, more sensual tone to simulate a jazz ballad.(4) Harris's style is strong and assertive, imbued with an American melos of hymn tunes and folksongs, and using the orchestra to create powerful effects of block antiphony .(5) The alleluias are strong and simple, with mainly two-part antiphony (back-and-forth) between the men and the women.