It's amazing how powerful the memory can be, especially when it comes to music. In just a few notes you can instantly recall a tune, even if you can't remember the name of the song or who wrote it. Parent testers told us that as they listened with their children to these great classical pieces they found themselves humming along with the tune even though they hadn't heard them in years. For younger listeners, the use of familiar children's song lyrics set to great classics, worked the same way, only in reverse. Considering the state of the music industry today that can only be a good thing.