Goatskin? Well, in many forms of folk music, expecially in South of Italy, is widespread a musical instrument of the percussion family called 'tambourine' ('tamburello', in italian). It is a small frame drum with pairs of metal jingles, that produce a high sound, and a skin for the lower sound. The skin can be synthetic or natural and the textures in this set come from goatskin (properly treated) used to build this kind of musical instrument.