Now we call know Trinidad when it comes to their great food and carnival. But one of the highlights of this season is the Panorama. Listen the great sounds of the pan in attached video. Steel drum music is a tradition on the islands of Trinidad and Tobago. The Pan are made from recycled oil drums. The drums are mad in different keys and usually played in ensemble style. They can play anything from Bach to Metallica. Source: Driven Models
Also look at short Documentary how the Pan is made.