It was a good season for classical music in Philadelphia, but there are more than a few storm clouds on the horizon. The city’s music critics go over the good (“Chamber Orchestra of Philadelphia music director Ignat Solzhenitsyn went several extra miles with Shostakovich’s darker-than-dark Symphony No. 14”), the bad (“the elimination of the city’s arts and culture office by Mayor [John] Street”), and the profoundly worrisome (“Now that most listeners have tired of talking about the acoustics of the Kimmel… let’s not forget that the city spent $265 million to build a great orchestra hall and didn’t get one.”)