The Loudoun Symphony Special Announcements The Loudoun Symphony Announces Open Auditions for All Instruments for the 2002-2003 season. The Loudoun Symphony Youth Orchestra Announces Youth Orchestra Auditions. Check out the sneak-peek at our 2002-2003 season. This is the twelfth season for the Loudoun Symphony, located in Loudoun County, Virginia. As part of its mission, this season the Symphony ...