>...Both Del and Bill are in agreement that agraffes are not the cause. >However if Bill's view that the problem is caused by "the curling nature of >piano wire", wouldn't the problem be found equally in grands and uprights >which Del contends it is not? Is it primarily confined to specific >manufacturer/models as Del contends?... >John Woodrow Whatever the reasons that contribute to the phenomina of unlevel strings in the speaking length, they are found in both grand and upright pianos. And whatever reasonable efforts are applied to correct the string level discrepancies with one another before manipulating the hammers greatly enhances the opportunity to improve the tone of the piano. Keith A. McGavern kam544@ionet.net Registered Piano Technician Oklahoma Chapter 731 Piano Technicians Guild USA
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