Imagine you’re at a club, or in a concert hall, completely engrossed in a performance. As a music consumer, you are at your most susceptible in situations like these, but promoters and musicians have rarely been able to take advantage of your concertgoing euphoria, because they have no way of selling you a piece of the live music experience to take home. But a bar in New Jersey is becoming one of several testing grounds for a new digital kiosk which allows audience members to plug in and download a digital recording of the show they just saw, almost immediately after it ends. It’s “the next step in instant audio gratification,” and the possibilities for its use seem to be limitless.