While restringing an old square Steinway (I know, I know, just don't say it) that looked like it had lived in a steel mill town we were having trouble getting the soundboard to look anywhere near clean. In the way of an experiment I tried some mechanics waterless hand cleaner. The board ended up looking like it had been refinished with that warm glow that old wood with fine finishes look like. The cleaner when down into the pours of the finish and lifted out all that old crud just like it does on your hands. Did the job it was designed to do. Go to your local auto supply store and ask for a waterless hand cleaner without a grit. Newton
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