The Royal Scottish National Orchestra (RSNO) is Scotland's national symphony orchestra. Based in Glasgow, the 89-member professional orchestra also regularly performs in Edinburgh, Aberdeen and Dundee, and abroad. Formed in 1891 as the Scottish Orchestra, the company has performed full-time since 1950, when it took the name Scottish National Orchestra. It was awarded royal patronage in 1991. Shortly after the award it briefly used the title Royal Scottish Orchestra before reverting to its present name.