Two musicians in their prime enjoying the music

The Kennedy Center likes MacArthur "genius grant" winners who play piano, showcasing three of them last week. On Wednesday there was Vijay Iyer, followed by Friday's double-bill of Jeremy Denk and Jason Moran. Moran, the center's new artistic director for jazz, is curating a six-concert series called "/Jason/+" (this was the second) in which he collaborates with a variety of artists, ending up with the National Symphony Orchestra.