The BBC Scottish Symphony Orchestra (BBC SSO) is a broadcasting symphony orchestra based in Glasgow, Scotland. One of five full-time orchestras maintained by the British Broadcasting Corporation (BBC), it is the oldest full-time professional orchestra in Scotland. The BBC SSO takes live music to towns and cities across Scotland every season, performs around Europe, and in recent years has toured in China, the USA and South America. It appears annually in Britain's most prestigious events including the BBC Proms and Edinburgh International Festival, and performs at such festivals as the Cheltenham, Huddersfield Contemporary Music Festival and the St.Magnus Festival in Orkney. Broadcasting is still its primary duty, and all of its performances can be heard on the BBC's radio and television services.