The Jazz at Princeton Jazz Festival takes place on Saturday, April 13. In addition to free sets by Darryl Harper (clarinet), Josh Lawrence (trumpet), Yuhan Su (vibraphone), and the Princeton University Faculty Quintet, there is a ticketed concert at 8:00 pm featuring the Creative Large Ensemble, directed by Darcy James Argue, with drummer/composer/MacArthur fellow Dafnis Prieto.