Its only during the event - it will be gone in a few weeks...

It might be worth looking into how yards and "event-music-area" are overlapping - now that we've got the setting to play city-state-music instead of housing-area-music, maybe they can add a second box with "play event-music"? If there is event-music and you check it, the music will play regardless of where you are in the housing-area, if there is no event, the default housing-area music will play.