Possible Clues:

• Depraved scene with Gershwin's lover going topless
• It's abandoned if under P, then it could be musical with Bess
• Wild, debauched gathering
• Wild array, as of color
• Boozy group turned up to hold a wild party
• Being so gory it's got abandoned
• Unrestrained goings-on
• Wild and licentious party
• Wild revel gives soldiers good end to day
• Gershwin's eponymous character heading off to wild party