Pittsburgh Opera will host a free Brown Bag Concert at noon Saturday in the performance space of its Strip District headquarters at 2425 Liberty Ave. This performance will feature a preview of the upcoming production of "The Rape of Lucretia" and other Benjamin Britten songs. The opera will give a recital featuring resident artists Katherine Drago and James Flora at 2 p.m. Sunday at the opera's headquarters. Tickets are free. Call 412-281-0912 or visit www.pittsburghopera.org.

<B>Music in Millbrook</B>, a new series, will present the group Sound Witness at 7 p.m. Saturday at the Schoefield Event Center, formerly the Schoefield Methodist Church, 490 Creek Road on Millbrook Road, Grove City. Tickets will be available at the door. Call 724-662-1490.