Found object (music)
Classification of musical instruments / From Wikipedia, the free encyclopedia
Found objects are sometimes used in music, often to add unusual percussive elements to a work. Their use in such contexts is as old as music itself, as the original invention of musical instruments almost certainly developed from the sounds of natural objects rather than from any specifically designed instruments.[2]
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/Bowafridgeaphone.jpg/320px-Bowafridgeaphone.jpg)