If you've ever wondered what the vibes on a jazz record are, this is a good night to find out. Nick Mancini leads a quartet on vibraphone, a metal-bar instrument that looks like a xylophone but rings longer. He started out as a drummer, studied jazz in New York, and built his career in Los Angeles. He's also a composer and teacher. Watching one player keep rhythm and melody going at the same time is a treat. If you know a student who's into music, bring them along.