By Denny Dyroff, Entertainment Editor, The Times Pete RG Pete RG, who is headlining a show at Ortlieb’s (847 North Third Street, Philadelphia, 267- 324-3348, www.ticketfly.com) on October 9, will be treating his fans to a preview of his soon-to-be-released album “Whatever We Want Whenever We Want.” Three years ago, RG was in Philly playing the now-defunct North Star Bar while touring in support...