Public radio audiences aren’t exactly known for their embrace of cutting-edge pop music, but that didn’t stop Minnesota Public Radio from launching a cutting-edge pop show recently, with the aim of demystifying the genre for listeners who like the music, but are intimidated by the insider lingo and youth-dominated club scene. As it turns out, public radio stations around the country could not have been less interested in Pop Vultures, and the show, which was critically praised in the few markets in which it aired, has been killed off after only 22 episodes.