Annea Lockwood - The Glass World of Anna Lockwood (Tangent Records, 1970)

Annea Lockwood is a New Zealand born, American composer whose works often utilize unique sound sources such as glass or pianos grown over with moss. She has also recorded works inspired by the Fluxus movement in which pianos are played while being submersed in water or set aflame. Glass World, for which Lockwood is probably best known, is a showcase of experimental sonorities created by glass in various forms. Download it here.