For as long as anyone can remember, the last Saturday night in January has played out in the same slightly paradoxical way for Philadelphia's Grand Old Lady of Locust Street.
A comely crowd of women in gowns and white-tie-and-tailed men assembles for her birthday. Music is played, speeches are made, and then the revelers file out of the Academy of Music to other spaces for dinner and dancing, leaving the hall they came to fete still and dark.
This year, though, the honored guest was around for the whole party.
At Saturday night's 155th Academy of Music Anniversary Concert and Ball, instead of heading for the Hyatt at the Bellevue after hearing cellist Yo-Yo Ma, jazz singer Diana Krall, and the Philadelphia Orchestra, the audience stayed.