The Spanish Harlem Orchestra, vividly rhythmic and sensationally jazzy, released last night some incredible musical vibrations ripple through the crowd of swaying bodies and tapping feet. It was a sensuous and tempting concert that few couples could withstand the dynamic and lively beats. The presentation of such a buoyant form in a concert hall (that lured one euphorically into salsa, merengue, and bolero) teased us all, so that even the elderly could not resist the natural movements of their body, standing up elbow-wide greeting the beats. Salsa-jazz connoisseurs could do little but break the confines of their cushioned seats and turn the aisles of Bailey Hall into the dance floor we all longed for. There was one striking comment that the pianist declared: this music in its historically, culturally, and rhythmically rich complexity deserves to exist in a concert hall just as this, just as any other esteemed classic hit. And it very much does, but it does even more. This music calls for more than pure spectatorship, but an engagement with its very core from the body of the instrument into the body of the viewer-dancer, so that the viewing area becomes an extension of the stage itself, and there is nothing more rewarding, generous, and beautiful than to invite the onstage experience into the experience of your listeners.