I emailed olympics.com and they referred me to their “Olympic Studies Centre” but neither knows the answer. “The AIN anthem has been independently produced by the IOC as mentioned during the IOC press conference on 19 March. The IOC holds all rights for this. Unfortunately, we don’t have more information to share about this anthem.”
Did another test today, this one for AsianCrush - 49-minute program with 9 minutes of ads, so about 18%