Last night’s performance of Jemeel Moondoc’s decade-long project, "Jus Grew" Orchestra, mesmerized the capacity audience in Bezanson Recital Hall at UMass Amherst . This orchestra works within the context of "free jazz", yet, upon listening, you can hear its roots. Its roots are imbedded in Moondoc’s deeply sincere assimilation of the best of jazz band music, specifically that of Ellington and Mingus, and more broadly of individual artists, like saxophonists Henderson, Ayler, and Jackie McLean.