The underside of the soundboard and reinforcement bar coated with lacquer.
After gluing the reinforcement bars in place, the final step on the soundboard was to install trim pieces on the edges of the board. These serve two purposes. One is cosmetic. I used walnut for the trim pieces because it is a pretty contrast in color to the spruce. Secondly, the trim pieces are similar to the bind bar in the piano. The glue surface is narrow, and the trim pieces add strength and a reflective quality to the edge of the soundboard. Screws will also be used to secure the soundboard to the sound box.
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