Christ Church Concert

David and Ginger Hildebrand, specialists in Colonial-era music, perform tomorrow at Christ Church in La Plata. The concert is offered in conjunction with the 100th anniversary of the moving of Christ Church from Port Tobacco to its site on Charles Street. The Hildebrands play authentic and reproduction early-American instruments, including the violin, Baroque and English guitars, hammered dulcimer, spinet and English flute. Their program highlights the formal and less refined aspects of vocals and other music from the 18th through 20th century. The pair include stories as introductions to their music, especially with its connections to Maryland history. The Hildebrands have served as period-music consultants for historical television programs and have recently released a soundtrack, "George Washington: Music for the First President." The 7:30 p.m. performance is free, with a public reception with the artists after the concert. Christ Church, 110 E. Charles St., La Plata. Handicapped-accessible. 301-932-1051.

Sheriff's Open House

The St. Mary's County Sheriff's Office will host its first open house from 10 a.m.-3 p.m. Saturday. Visitors will be able to check out county emergency vehicles such as patrol cruisers, the DARE vehicle, a crime lab mobile unit, fire department and rescue squad equipment, and prisoner transport vehicles. Other open-house features will include a child safety seat checkpoint, a McGruff the Crime Dog safety talk (10 a.m.), a K-9 demonstration (1:30 p.m.), vehicle assault extraction (12:30 p.m.) and other demonstrations (2:30 p.m.). Tours also will be offered of the Sheriff's Office headquarters (10:30 a.m. and 1 p.m.) and the Detention Center (11:30 a.m. and 2 p.m.). A Police Memorial Day Recognition Ceremony will be held at noon, and Sheriff David D. Zylak will give a talk at 3 p.m. All activities are free. St. Mary's County Sheriff's Office, Leonard Hall Drive, Leonardtown. 301-475-4200 or www.firstsheriff.com.

David and Ginger Hildebrand, specialists in early-American music, will perform tomorrow for the 100th anniversary of the moving of Christ Church.