As we go to press, the Web site of the Vienna Philharmonic merely requests that we hold the date, revealing neither the program, the conductor, nor, if any, the soloist or soloists. That’s okay. The orchestra’s Summer Night Concert in the park of Schönbrunn Palace is reliably a wow—a pops concert in excelsis: all music, no junk, presented free of charge (thanks, Rolex!), no tickets required. Any chance of catching it all on television? Any chance Pope Leo roots for the White Sox? —Matthew Gurewitsch