Back in business: Kevin Berwick, a Pittsburgh Symphony Orchestra engineer, and Susan Jenny, manager for building operations, hang signs for upcoming shows at Heinz Hall on Wednesday. PSO musicians and managers reached a deal today, ending a strike that began Sept. 30. To celebrate the settlement, on Dec. 2 and 4, the PSO will perform free “The Music Has Returned!” concerts at Heinz Hall. (Photo by Michael Henninger/Post-Gazette) #Pittsburgh #PGH #412 #PittsburghSymphonyOrchestra #PSO #orchestra #PGPhotos