Pittsburgh Youth Symphony Orchestra, under the direction of Lawrence Loh, will present the concert “Cornucopia of Sound”at 7:30 p.m. Sunday at Heinz Hall, 600 Penn Ave. The concert is free, but tickets are required for admission. To download a free ticket, visit the website at www.pyso.us.

The Organ Artist Series of Pittsburgh presents organist Todd Wilson in concert at 4 p.m. Sunday at Calvary Episcopal Church, 315 Shady Ave. Tickets, available at the door or in advance, are $12 for adults; $5 for students with valid I.D. A reception with light refreshments and hors d’oeuvres follows the concert. Parking is available adjacent to the church. Call 412-242-2787.

Pittsburgh Opera will present “Lucia di Lammermoor” at 8 p.m. Friday and at 2 p.m. Sunday 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.region

Opus I Music Society is hosting a benefit concert of piano, organ, choral and handbell music at 7:30 p.m. Saturday in Bakerstown United Methodist Church on Route 8, 5760 William Flynn Highway. The concert will benefit Opus Is college music scholarship fund. Performers will include the St. Alexis handbell choir, the Ellwood Civic Chorale and members of the Art of Music and Dance Studio. Tickets are $10 for adults, $5 for students and free for children age 10 and younger. A reception will follow the concert. Call 724-865-2548.

Allegheny RiverStone Center for the Arts in Foxburg will host Member Appreciation Night on Saturday at Lincoln Hall. Call 724-659-3116 or 412-894-8749.