“Ris Piano delivers high-wire performance in the most nonchalant manner. Christopher Ris, a musician himself, not only tunes pianos, but services, restores, and rebuilds them too. My Mason Hamlin Model A grand was needing tuning every 3 months. It was annoying. Chris fixed that pronto by putting in a DampChaser system. Once a year was all it needed after that. An ample demonstration of him putting customers before his own profit. I suspect this is why there are not more DampChasers installed by other piano tuners.