Playing music on sites

Having recently had a week at a site in Devon followed by a few nights at Grafham Water, I was suprised and annoyed by the number of caravanners who think it is acceptable to have their music playing in their caravan loud enough so they could hear it when they were sitting outside or in their awninings. On both sites the persons concerned were not "youngsters" and although they may enjoy the sound of Dolly Parton etc, they need to realise the rest of us may not! Please have consideration for others who may go caravanning for a bit of peace and quiet.