What about the Ormond right in the heart of the city, but as many of the bedrooms are to the back (looking over a nice courtyard) they are quiet. It's very handy for a stroll around the town and shops and they can always go back to the hotel in the afternoon for a rest before the evening meal and activities
I don't think there is music at night but there is some close by.
The last time we were there we were upgraded to a suite which just gave that luxury feel