The Waltham Philharmonic Orchestra, a civic symphony of the MetroWest area, began in 1985 under the direction of local musicians David J. Tierney and Harold W. McSwain, Jr. Comprised of almost 60 professional, semi-professional, and amateur musicians, the orchestra's mission is to provide the Waltham community with the opportunity to perform in and attend classical concerts of the highest quality. WPO musicians come from Waltham as well as from Boston and surrounding communities. The ensemble includes players of a wide range of ages and professions. There are five to six concerts throughout the season, including one that features the winner of the annual Youth Concerto Competition, which provides opportunities for young musicians to perform solo works with the WPO. Annual concerts have included summer Concerts on the Common and the December Holiday Pops.