Angels love their harps, but if you want to hear heaven you'll need a cedar flute. It is the sound of serenity. Kevin Locke has been lionized for snatching the cedar courting flute of the Lakota from the brink of extinction. In 1990 the National Endowment for the Arts made Locke a National Heritage Fellow for his work in maintaining Lakota culture—flute at the forefront along with hoop dancing, singing and storytelling. Locke, Lakota by birth and raising, is constantly touring these days, to 70 countries and counting, most recently Greece and Turkey. A world traveler might opt for a home on either coast, but Locke returns to South Dakota for rest and recharge. Sometimes he travels with a group of musicians, reframing his cedar flute in a world fusion context. At the moment he is finishing a weeklong residency in the West Chester School District, putting his master's in education to work in the service of sharing Lakota arts. It will be a rare pleasure to relax in an informal space like the Calvary Center with the man alone, the perfect intimate setting for solo works, flute playing and singing, sharing stories ancient and quite new, including those of his Baha'i faith. Locke's traditional Lakota hoop dance—visualize a person dancing inside a Chinese puzzle ring if you've never seen it—will cap off the evening.

Sat., April 29, 7:30 p.m., $10-$20, Crossroads at the Calvary Center, 48th St. and Baltimore Ave., 215-729-1028, www.crossroads.calvary-center.org.