Great, now I have the M*A*S*H theme in my head.
As TightSlot suggests, you need to write to customer relations so it can be tracked accordingly however I don't remember ever having received a complaint regarding the music.
Funny enough, I flew for an airline that played contemporary music (not muzak) from the 60s through to the 90s across a variety of genres. They felt the expense was justified because it broke the tension during take off and landing and helped to calm nervous passengers by giving them something to concentrate on as well as covering up some aircraft noises.