The Edmonton Symphony Orchestra (ESO) is a Canadian orchestra based in Edmonton, Alberta. As the professional orchestra of Alberta's creative capital city it presents over 85 concerts a year of symphonic music in all genres, from classical to country. Currently in its 74th season, the orchestra is composed of 56 core professional musicians who perform 42 weeks per season and who play an active role in the musical life of Edmonton and elsewhere as performers, teachers and recording artists. The ESO also performs as the orchestra for Edmonton Opera and Alberta Ballet productions, and its recordings are regularly heard across Canada on CBC Radio 2.