Philadelphia Singers close out with Rachmaninoff, Tavener

On a lighter note, the Voices of the Pops join Peter Nero's Philly Pops for a celebration of American favorites at the Kimmel Center. $55 tickets are available for the 2 p.m. Saturday show only. Info: 215-893-1999.

The Philadelphia Youth Orchestra gives its 62nd annual show at the Kimmel Center, 7:30 p.m. Sunday. Joseph Primavera, wrapping his 48th year as music director, leads Walter Piston's Second Symphony, Respighi's "Fountains of Rome" and Schubert's Ninth Symphony. For free tickets, call 215-563-7308.

The late, beloved Anthony Gigliotti, principal clarinetist with the Philadelphia Orchestra for 49 years, will be honored with a free concert at 3 p.m. Sunday at Curtis Institute, 1726 Locust St. It features two of his Curtis students, Agnes Marchione and Victoria Luperi, and friends. Pieces include Ligeti's Six Bagatelles, Schubert's "Der Hirt auf dem Felsen" and the Mozart Clarinet Quintet that Gigliotti played like an angel. Info: 215-893-7902.

Piffaro, the Renaissance band, wraps its season with "Alta Capella." Shows: 8 p.m. tomorrow, St. Paul's Church, Old York and Ashbourne roads, Elkins Park; 8 p.m. Saturday at St. Mary's Hall, Villanova University; 7:30 p.m. Sunday at St. Mark's Church, 1625 Locust St. Tickets: $17-$20. Info: 215-235-8469. *