Music Box World Kingdom Advent Calendar We Wish You A Merry Christmas. Plays “We Wish You A Merry Christmas ” as doors are opened. Music has been tested and is working. Please note: There are sensors inside doors that activate music when doors are opened. For the sensors to function properly, calendar must be in a well lighted room. Family characters do not move around tree as they should. There is what appears to be a chip near back of boy. There is a repair to roof as shown in photo 8. Please see photos for further details and or possible defects as they are part of the description.