Arlie, >>If you use the una chorda gingerly, all is well. If you depress it = fairly quickly, there is a sharp, loud squeak<< Watch for a loose balance rail glides. If you wiggle all the posts you = may find that one in the area that squeaks is loose. Glue size the hole, = sand the keybed smooth, apply some teflon spray, and the noise should = disappear. Don Mannino RPT
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