At 8 p.m. on Saturday, October 31, the Colby Symphony Orchestra, under the direction of Laura Jackson, will perform a concert in Lorimer Chapel featuring a variety of colorful orchestral music. Part of the 1998-99 Music at Colby Concert Series, the performance is open to the public free of charge.

The electrifying overture to Weber's "Der Freischutz" will open the program, followed by the premiere performance of a new work titled "Tapis" by Colby senior E. Anna Bridges. Afterward the free nature of Debussy's "First Rhapsody for Clarinet and Orchestra" will feature Karen Beacham as clarinet soloist. Beacham is an applied music associate at Colby. The program will end with Beethoven's exuberant "Symphony No. 7, Op. 92 in A Major."

Bridges' "Tapis" (French for "tapestry") is a short contemporary composition for chamber orchestra. The composer, a vocalist who sang the solo part last year when the orchestra performed Samuel Barber's "Knoxville, Summer of 1915," grew up in Ashland, N.H., and graduated from Plymouth Regional High School. Her parents now live in Philadelphia.

Maine's largest college orchestra, the Colby Symphony Orchestra includes student, faculty and community musicians.