On the sunday evening near midnight going from the Old Road Tavern back to the campsite I passed near the Black Horse on the opposite side of the road. There was a very loud band playing in the yard, but the music was rock rather than folk.
Possibly the complaint is based on fear that the pub will be regularly putting on loud bands, not an objection to the folk festival events - the midday ceilidh in the yard was a lot quieter than what was on in the evening