She spent a little while practising the new charm and making sure the CD player really did work. It was a clever piece of magic, she was proud that Malfoy and Flitwick were able to achieve this. They must have put in a lot of hard work trying to get this to work, she wondered briefly how many Muggle objects they had destroyed attempting to get this functional. She would have to thank Flitwick too, she was grateful he was mentoring Draco. She was certain not many people would be bouncing at the idea of assisting a war criminal develop magic but she was also aware that her professor was proud of all his great achievers and as head of Ravenclaw house was always happy to assist the advancement of magic. 