Sam Beam is the central component in the band called Iron & Wine. For nearly two decades, he has made music for the masses — from the unfortunate and extremely cloying cover of Such Great Heights to the genuine great heights of his later albums — Sam Beam has kept Iron & Wine relevant and alive. He brings that life to the Arkley Center for the Performing Arts tonight at 7:30 p.m. ($49). Come find out what all of the fuss is about.