Sakura, Tomoyo and the Wonderful Song

The rumor around the school is that the music room is haunted. A girl noticed the singing when she was at the school at night. Both Sakura and Shaoran since a mystical presence in the room and suspect that it could be a Clow Card. That night, Sakura, Kero, Tomoyo, Shaoran, and Meiling all go to the school to find the mysterious voice and discover that it is the Song Card copying one of Tomoyo's songs. The card escapes and leads them on a chase through the school.