Watch Online Free on Watchseries. In celebration of the 25th anniversary of the Ace Combat series, the ACE COMBAT 25th Anniversary AIR TACTICAL ORCHESTRA performed a celebration symphony concert, including many popular songs from across the series. The concert was rescheduled due to COVID-19, and was performed on August 8th, 2021 at the Ota City Residents Hall Aprico Large Hall. Keiki Kobayashi, composer and sound director for the Ace Combat series, conducted the performance.