But this week, the orchestra is performing a series of free concerts, throughout the area.
The Philadelphia Orchestra Free Days start this morning with an 11:00 a.m. concert at the Main Branch of the Library. Events run through Thursday, with a total of six different events over the four days.
Orchestra President and C.E.O. Allison Vulgamore explains, "We're coming outside of the concert hall and giving free events as encores of thanks to the communities in Philadelphia. It excites us because we are going to divide up into different kinds of groups and do different kinds of activities."
On, Tuesday, orchestra members will play side-by-side with members of two youth orchestras at the Salvation Army Kroc Center of Philadelphia, 4200 Wissahickon Ave. On Wednesday, they'll head to the suburbs to play with members of the Lower Merion Symphony.
Vulgamore adds, "We're also going to do a sing-in." The sing-in of The Messiah will take place at Verizon hall.
At lunchtime on Thursday, audience members will get to conduct the orchestra as they play at the Market & Shops at Comcast Center, 1701 JFK Blvd. And the free concerts wrap up that night at the Navy Yard.
Vulgamore says even if you're not a classical-music lover, you should give these concerts a try.
"These are great experiences to come and just bring your heart and your ear. You don't have to know anything. Actually, it's our job to move you," she explains.
While the concerts are free, some require tickets in advance. To see the complete schedule and to reserve tickets, click here.