Christmas Celebration

When I woke up I saw a strange red present on my bed ..... I was nervous ! I went down-stairs and on the wall it said "Merry Christmas" I knew we were going to have a big celebration. I opened my present in front of my parents, it was a surprise! It was a wooden music box. After a while someone knocked on the door, it was all my friends in party clothes, and they shouted "

MERRY CHRISTMAS!" in my ear... it was annoying! They come in and we all celebrated. Did the music box do anything? If so... what?