“Eureka 378-B,” the stage setter for Horse Lords’ Demand to Be Taken to Heaven Alive!, is an arrangement of a nineteenth century hymn from The Sacred Harp, its theme of transcendence (or ascendance) transformed by auto-tune and modulation, with bass clarinet and trombone anchoring the piece, but the yearning in the voices is clear.

On “Brain of the Firm,” polyphonic and wordless voices dance around pulsing bass, slinky guitar phrases, keyboard bloops and fleet kitwork. The rhythm is derived from the band’s work at IRCAM, though Central African vocal syncopation and Appalachian drone duet front and center. Given tent revivals and the all night possibilities of sacred guitar music, there’s a clear spiritual and pragmatic connection between the message of “Eureka 378-B” and the plastic motion of “Brain of the Firm.”