On Friday, March 21, Distinguished Concerts International New York (DCINY) presented “a cappella NEXT,” in which three choirs performed a fascinating line-up of contemporary choral music in Weill Recital Hall at Carnegie Hall. Included were four world premieres, and many of the composers represented on the program were present in the sold-out audience, making for an evening vibrant with the vitality of new music. First up was the University of California, Berkeley Chamber Chorus under the direction of Marika Kuzma. They opened with the short fanfare “Let everything that hath breath praise the Lord” from Requiem: a Dramatic Dialogue, composed