David Letterman used to say before Stupid Pet Tricks segments, “It’s an exhibition, not a competition, please no wagering.” And that’s true for music too. It ain’t sports. Even though we have charts and Grammy Awards, it’s safe to say that when you’re listening to a transcendent performance getting carried away, you’re not sitting there thinking “wow, she’s gonna WIN!” That said, the world of music is full of contests from American Idol down to the local high school talent show, and sometimes they can be telling.