The week-long “Organ Extravaganza” is a series of free performances on outstanding pipe and digital organs in the Lehigh Valley:

American Guild of Organists Concert, 3 p.m. March 5, Egner Chapel, Muhlenberg College, 2400 Chew St., Allentown

“Meet the Organ” Happy Hour, hosted by Allen Organ, 5:30 p.m. March 6, Miller Symphony Hall, 23 N. Sixth St., Allentown

Eric Plutz, Organist at Princeton University, “Noon-10 Concert,” 12:10 p.m. March 7, St. John’s Lutheran Evangelical Church, 37 S. Fifth St., Allentown

Stephen Williams, Lenten Music Organ Recital, 6:30 p.m. March 7, First Presbyterian Church, Tilghman Street and Cedar Crest Boulevard, Allentown

Don Kinnear, organ, “The Beloved Rogue,” silent film, 7 p.m. March 9, Civic Theatre of Allentown, 527 N. 19th St., Allentown

Hector Olivera, ASO Organ Soloist, “Meet the Artist,” noon March 10, Miller Symphony Hall, Allentown

Stephen Williams, “All-Bach Organ Program,” 8 p.m. March 10, Cathedral Church of the Nativity, Third and Wyandotte streets, Bethlehem

Allentown Symphony Concert, “Symphonic Organ Festival,” 7:30 p.m. March 11; 3 p.m. March 12, Miller Symphony Hall, Allentown. These two concerts require paid tickets, except for students, who are admitted free.

Allentown Symphony Orchestra concert tickets: Miller Symphony Hall Box Office, 23 N. Sixth St., Allentown; allentownsymphony.org; 610-432-6715. Free student tickets, underwritten by a grant from the Century Fund, are available for Allentown Symphony Orchestra concerts. Information:millersymphonyhall.org/calendar/event/354/