At a superficial glance, classical music and a club atmosphere are the antitheses of one another, but at the endlessly inventive, Frank Gehry-designed New World Center, the two ends of the musical spectrum become strange bedfellows. New World Symphony's "Pulse" brings the loose, anything-goes atmosphere of a neon-lit South Beach club inside a classical music concert hall, an environment that historically has had a reputation for buttoned-up, white glove affairs. But "Pulse," which is just one recurring event of many that beckon younger audiences to spend their evenings with New World Symphony, eschews traditional concert trappings like fixed seating in favor of disco balls, innovative light and visual displays, and guests' ability to walk freely about the theater during performances. Audience members don't have to wait for intermission to fetch drinks, and they can even sit at the foot of the stage to watch performers make music up close.