Here is a classic piece and listening map that your students will love to do for Halloween - March to the Scaffold by Hector Berlioz. It is this kind of programmatic music that got me hooked on classical music as a kid. If you do not know the bizarre story that is behind the March, read it here. It is an appropriate lesson for both middle school and high school students, but you should probably shy away from using it in with an elementary music class. Your students will have a great time with this!
Don't own a copy of March to the Scaffold? No problem. You can listen to it right here, courtesy of GrooveShark.
Click Here to view the March to the Scaffold Listening Map