We usually listen to the comp we are studying duing specific times…like lunch, while working on other subjects etc…I make it a point to say, this is……
when we clean house and turn on the stereo I just put some on and do not announce who and they *usually* remember.
or sometimes during quiet time I will turn the stereo downstairs up just enough so it plays quietly throughout the house and they each have a CD player in their room for bedtime music which is either Christian or Classical