Since its founding in 1977, the Greater Baltimore Youth Orchestras provide student musicians with a thorough classical music and orchestral education while offering audiences concerts of music ranging from well-loved symphonies to cutting edge contemporary works. Based in Baltimore, Maryland, four ensembles comprise the GBYO, the full-sized symphonic Youth Orchestra, the intermediate-level Concert Orchestra, and the beginning-level Sinfonia and Sinfonietta ensembles. GBYO also offers a "Bridges" program, providing entry-level instruction to underserved youth in the city. The GBYO ensembles are in residence at Loyola College in Maryland.