BBC Scottish Symphony Orchestra
Founded 1935.
Glasgow Chamber Orchestra
Established 1956.
Glasgow Senior Citizens Orchestra
Founded in 1963. It seems to be a unique orchestra in the UK, being the only such ensemble specifically for older musicians.
Royal Scottish National Orchestra (RSNO)
Established 1891.
The Really Terrible Orchestra (RTO) Edinburgh
Founded 1995 by Edinburgh based author Alexander McCall Smith and Businessman Peter Stevenson.