"Contemporary classical" describes music composed in the classical tradition by composers of the latter half of the 20th century and current times. Contemporary classical music incorporates technological developments of the modern era (recording, electronic instruments) while maintaining a composition style rooted in notation. Contemporary classical music also incorporates artistic developments in sculpture, film and particularly dance. Many of the best known contemporary classical composers are most widely known for their film scores, e.g. Philip Glass and Michael Nyman.