Dear List: Today I ran accross a problem I have never witnessed. I tuned a 35 - 40 year old Yamaha P1 with very bad lost motion. I started adjusting the capstans, but the first key I did wound up blocking the hammer against the string. I then noticed that under the back of the keys, where the back rail cloth is supposed to be, was some gooie (sp) material, with the consistency of peanut butter, only a little more solid. I could scape this stuff off the wood with my fingers. My recommendation to the customer was to replace this stuff with regular back rail cloth. First of all, can anyone tell me what this stuff is. And second, does anyone know what thickness of cloth I need to use. Willem Blees RPT St. Louis
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