You could say choreographer Alvin Ailey peaked early. His 1960 work Revelations, a suite of ensemble and solo works set to African American spirituals and hymns, became the work the rest of his career was judged by. It remains a masterpiece of modern dance--and a daunting, energetic gauntlet for dancers to perform. We'll see the young dancers of Ailey II (including Katherine Horrigan, in the moving "Fix Me, Jesus") do so when the company comes to Duke's Page Auditorium, Jan 26 at 8 pm. These fierce technicians will open with the subtleties of Igal Perry's Intimate Voices to music by Bach, before the pyrotechnics of Robert Battle's all-male Takademe, set to the vocal gymnastics of India's Sheila Chandra. Tix are $29-$9, and available at 684-4444 or at tickets.duke.edu.