I realize it is probably a bit late in the event for this, but I hope the SL23B team and LDPW will take it to heart for future events. In SLB Astonish, The Wisteria Grove and the Orpheum Stage share a region and are within, for at least parts, 100 m of each other. When I was attending an event at Orpheum, we were constantly hearing shouts from the folks on stage at a concert happening at the Wisteria Stage. This felt very disruptive, but it is easily fixed.
Two possibilities:
One, in future ensure that two stages that will both be hosting events at the same time are not so close to one another.
And/Or
Two,
at least during the events
, uncheck "Avatars on other parcels can see and chat with avatars on this parcel", on one or both.
Thank you for all your hard work on SL23B.