Philip Brunelle, founder and artistic director, leads 24 mixed-voice, MN-based VocalEssence in the "Witness" concert series-this one focused on African American spirituals and gospel music. Joining them are Moore by Four, an ensemble of Minneapolis-based jazz vocalists, and several accompanists on piano, drums and bass. 16 powerful, soulful tunes here: "Witness," "Hush, Somebody's Callin' My Name," "Death Is Gonna Lay His Cold Icy Hands On Me," the upbeat "Walk Together, Children," the powerful a cappella hymn "Were You There," the Moses Hogan-arranged "Elijah Rock," the Jester Hairston-arranged "In Dat Great Gittin' Up Mornin'," "Go Where I Send Thee," "Swing Low, Sweet Chariot" and the Michael Abels-arranged title tune, "What a Mighty God." This is a wonderful collection of spirituals and Gospel tunes, authentic and sung with soul and spirit by one of the best Choruses (and jazz ensembles) on the planet. Great stuff!