The San Diego Symphony Orchestra performed its first concert on December 6, 1910. In the 100-plus years since its inception, the SDSO has become one of the leading orchestras in the United States and was designated a Tier 1 Orchestra by the League of American Orchestras in 2010. It is committed to providing musical experiences of superior quality for the greater San Diego community and beyond. Through a rich mixture of innovative and educational programming designed to appeal to all ages and cultures, the Symphony makes music an integral part of the cultural and intellectual fabric of Southern California, valued by and relevant to all its residents. The Music Director of the San Diego Symphony is Rafael Payare. The Principal Guest Conductor is Edo de Waart.