It was a slightly unlikely setting: the cold sanctuary of a former church with light streaming through a round stained-glass, beaming down on the stage on a cold winter’s night in downtown Marshall. But a sweet little crowd of folks clustered together to hear the Madison County Arts Council’s program of the evening, featuring the celestial music of the Asheville-based artist Vincent Wrenn on his self-created Radiasonic, joined by James Owen’s Pythagorean-tuning creations on lap steel.