This is "Umoja" from Afrika Rising, the encore performance of that evening of the festival. Thanks for posting!
Flutist Nicole Mitchell's Arc of O, rehearsing in Estrada (Poznan, Poland) for Made in Chicago Jazz Festival with the An Arche Ensemble. Special guests: Mwata Bowden (clarinet), David Boykin (tenor sax), Renee Baker (violin). December 2010.
Thanks for posting this video!
Nicole Mitchell flute
Hamid Drake drums
Harrison Bankhead bass