Three scholarships to the American Federation of Musicians' 1980 Congress of Strings are available to young musicians in the metropolitan area.

The scholarships are being made available through the D.C. Federation of Musicans, Local 161-710, A.F. of M., in cooperation with the National Symphony and Anita Willens. One scholarship is limited to a bass violinist in memory of Willens' husband, Joe, who was a contractor for the National Theater and Kennedy Center.

The 1980 Congress of Strings will take place June 16 through Aug. 8 at the University of Washington in Seattle and June 23 through Aug. 15 at the University of Cincinnati in Ohio.

The scholarships will pay full tuition for the eight weeks of intensive instruction under noted string teachers from the nation's foremost symphony orchestras and will cover transportation, housing, meals and recreation programs.

Auditions will be held at 9:30 a.m. Friday, March 14, in the McDonald Recital Hall of the Kreeger Music Building at American University. Principal players from the National Symphony Orchestra will judge the try-outs.

Contestants must be string players between the ages of 16 and 23. To obtain an Application, which must be submitted by March 13, calling 244-8833 or write Robert D'Arcy, Secretary, Local 161-710, A.F. of M., 5020 Wisconsin Ave., NW, Washington, D.C. 20016.