There is always room for one more supergroup and we surely have one in Mendoza Hoff Revels. Granted, if you can handle the Scoville burn, the flavor of this particular power-quartet is heavy on the free-jazz-rock seasoning. Taken from their forthcoming album Echolocation, the five-minute slice of “Diablada” assures us that Mendoza Hoff Revels really like the whole-tone scale and …