Harrisville Community Band will play a free fall concert at 7 p.m. Friday at the Harrisville Fire Hall, 313 E. Mercer St.

<B>Renaissance & Baroque Society of Pittsburgh</B> will present Plaine and Easie in a “Continental Connections: Musical Channel Crossing” concert at 8 p.m. Saturday in Synod Hall, Oakland. The ensemble won the 2009 Early Music America Medieval/Renaissance Competition. Tickets range from $10 for student admission to $35 for reserved seating. Tickets are available in advance online at www.rbsp.org or by calling 412-361-2048.<B>Pittsburgh Opera</B> will present “Lucia di Lammermoor” at 8 p.m. Saturday, at 7 p.m. Tuesday, at 8 p.m. Nov. 19 and at 2 p.m. Nov. 21 at the Benedum Center, 719 Liberty Ave. The opera will be sung in Italian with English texts projected above the stage. Tickets start at $10. Call 412-456-6666 or visit www.pittsburghopera.org.