“Regrets, I’ve had a few,” Sinatra sang in “My Way.” Now Sean Combs also looks back, joined by the singers in his new trio, Diddy-Dirty Money. The rap swagger remains, but gone is the trash talk of drugging and thugging. The group comes to town to promote its Last Train to Paris album, whose “Coming Home” cut declares, “Here I stand, a better man.” It’s Combs calling across the years—and maybe answering Sinatra—as Dawn Richard and Kalenna Harper’s yearning, burning voices urge him on. More information.