We all know that when using the mute rail on an upright, the felt can make adjacent unstruck strings sound, in the high treble, or when the damper pedal is down. The problem seems to be worse if the felt sheet hangs farther away from the strings, or if there is extra felt below the strike point -- more movement when the sheet is struck in either case. Do we agree with that? But even when the felt is positioned ideally, it can still be noticeable. Moreso on pianos with thicker felt. Has anyone has success with slicing the felt between each hammer? It seems like after a year of playing, it could be totally frayed and misaligned. But I would be interested to hear any experiences from others. Thanks!
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Frank Chemotti
Seattle WA
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