Some veterans of 60s energy music are banked pretty low these days, the fire in their playing reduced to a warm glow, and others have been snuffed out altogether. But alto saxophonist Noah Howard still blazes like a furnace. He debuted in 1966 with a couple incendiary recordings for New York’s legendary ESP label, then in ’69 joined colleagues like Frank Wright, Alan Silva, and the Art Ensemble of Chicago in Paris. He now lives in Brussels, where he runs a club called Noah’s Ark and maintains his Altsax label, but he still comes to the U.S. now and then to rekindle old partnerships. He and Bobby Kapp, the drummer who’s playing with him here, first recorded together at one of those ESP sessions in ’66, and on their 1999 reunion disc, Between Two Eternities (Cadence Jazz), the 30 years they’d been apart melt away: Howard executes intricate figures colored by the fiery sermons and Baptist hymns he was raised with in New Orleans, while Kapp supports him with a paradoxically light touch and swinging rhythms. Estesombelo opens and Michael Columbia headlines; this is the second in the Bottle’s new series of mixed bills, Music of Changes. a 9:30 PM, Empty Bottle, 1035 N. Western, 773-276-3600 or 866-468-3401, $8.