ONE TIME ONLY EVENT Next week promises "reality" in the truest sense...33 contestants battling it out for the grand prize -- $50,000, a recording deal with Naxos, two years of management service and a string of guaranteed concert engagements worth an estimated $100,000. If you're unable to be in the audience, you can watch the first two rounds of competition in real time via a high-speed Internet connection on clevelandpiano.org. Webcast will be broadcast live beginning at 1:00 p.m. and 7:00 p.m. daily. Chances are that a winner or two will perform in Columbus in the future, so here's your opportunity to catch an early glimpse. The Cleveland International Piano Competition When: Tuesday through Sunday, Aug. 9. Where: Cleveland Play House, 8500 Euclid Ave., and Severance Hall, 11001 Euclid Ave. Tickets: $10-$75. For the first two rounds and the semifinals, call 216-795-7000; for the final round, call 216-231-1111.