The trumpeter from Trinidad Etienne Charles comes from a long line of musicians — purveyors of the Afro-Caribbean style stirred up with straight-ahead jazz. His album Folklore was named to NPR’s top 10 list of jazz albums in 2009. There’s no one better than Loren Schoenberg to team up with Charles for an hour of performance and discussion — after all, Schoenberg’s a saxophonist, and also a leading jazz writer and historian. Their free family show is at Community School for Music and the Arts. If you want more, hear the full concert at Stanford Lively Arts on April 4.