See the Jefferson Baroque Orchestra’s performance George Frederick Handel’s “Messaiah” directed by Margret Gries on harpsichord and organ. The concert will be performed as it was in the 17th and 18th centuries by the orchestra. The show starts at 3 p.m. Sunday, Dec. 11, at the Rogue Valley Unitarian Fellowship, 87 Fourth St. This choral and orchestral work premiered in 1742 in Dublin, Ireland. Tickets cost $18, $8 for students. See www.jeffersonbaroque.org.