Use for any combination of a variety of materials plus the associated techniques, used in the making of a single work of art. [...] For contemporary works that employ several distinct art forms, such as sculpture and music, use "multimedia works." Art & Architecture Thesaurus A term used to describe works composed of different media. The use of mixed media began around 1912 with the Cubist collages and constructions of Pablo Picasso and Georges Braque and has become widespread as artists developed increasingly open attitudes to the media of art. Essentially art can be made of anything or any combination of things. Tate's Website - Glossary