PLAYING IT BY EAR How the right live monitor can take your stage show to the next level  Whether you’re playing a grungy blues set at a local club or headlining a stadium rock festival, delivering a show to remember is impossible if you can’t hear what you’re doing. What sounds perfectly harmonious to you could sound like a broken chainsaw out in the crowd—and vice versa. So how can you ensure you’re getting the onstage mix that you need...