This Sept. 12, 2018 photo released by Opera Philadelphia, Mezzo-soprano Marietta Simpson, in foreground, rehearses the role of Martha in the new opera “Sky on Swings” premiering as part of Opera Philadelphia’s O18 Festival.
This Sept. 12, 2018 photo released by Opera Philadelphia, Mezzo-soprano Marietta Simpson, in foreground, rehearses the role of Martha in the new opera “Sky on Swings” premiering as part of Opera Philadelphia’s O18 Festival. Opera Philadelphia via AP Dave DiRentis
This Sept. 12, 2018 photo released by Opera Philadelphia, Mezzo-soprano Marietta Simpson, in foreground, rehearses the role of Martha in the new opera “Sky on Swings” premiering as part of Opera Philadelphia’s O18 Festival. Opera Philadelphia via AP Dave DiRentis

Philly Opera works to avoid ‘sophomore slump’

September 14, 2018 08:45 AM