In some circles, Playboy Tre may still be known as B.o.B’s sidekick and collaborator. He won’t let his title as part-time hypeman for the budding pop star slow down his grind or clamp his own musical aspirations, though. Instead, Tre gets back in the studio and delivers his new mixtape, Liquor Store Mascot 2: Patron & Instrumentals. Much of the project revolves around overcoming obstacles and the vices that are indulged along the way. Early on, “Still Standing” brings this to the forefront, and the rapper acknowledges the knock of Bobby Ray companionship on his name. “And it don’t matter ...