Commanders Jazz Ensemble will be performing at Vacaville Jazz Festival Published Sept. 6, 2012 By 349th Air Mobility Wing Public Affairs TRAVIS AIR FORCE BASE, Calif. -- The Commanders Jazz Ensemble will be performing at the Vacaville Jazz Festival on Sunday, September 16th at 5:30 pm. Stop by the Nut Tree Plaza to see this free performance! Nut Tree Plaza 1661 East Monte Vista Ave Vacaville, CA 95688