Music to their ears

It's always interested me, especially since I work in radio, the effect music can have on people. Studies have been done that suggest music can improve people's moods, help babies sleep, even benefit autistic children. A recent study has concluded that animals can also benefit from the calming influence of music. Now before you start playing Aerosmith for Fido, you should read this article http://www.msnbc.msn.com/id/22539914/ It seems harp music is the way to go. There's even a cd available. If it's so relaxing, could it be dangerous for people to listen to in the car? Perhaps before bedtime is a better time to try it.