Singer, songwriter and instrumentalist Tony Barge of Ellwood City will perform classic country hits and original music from 7 to 10 p.m. Saturday at the East Butler Fireman's Club, Grant Avenue, East Butler. Tickets will be available at the door. Visit www.tonybarge.com.

<B>Allegheny RiverStone Center for the Arts</B> hosts the Pittsburgh Symphony Chamber Players, recently back from a tour of Europe, performing in concert at 7 p.m. Saturday in Lincoln Hall, 92 S. Palmer St., Foxburg. Tickets are $20 for adults and $10 for students. Call 412-867-1816.

<B>Pittsburgh Opera’s</B> 2011-12 season opens with “La Traviata” by Giuseppe Verdi, at 8 p.m. Friday and 2 p.m. Sunday at the Benedum Center, 719 Liberty Ave. For tickets, call 412-456-6666 or visit www.pittsburghopera.org. <B><I><U></B></U></I>