The natural key levers are covered in boxwood, in keeping with the Iberian harpsichord tradition of light covered naturals and dark colored sharps. The boxwood was ordered in strips 1/8-inch thick, which were edged to the appropriate width (one width for the natural heads and another width for the space between the sharps. The sharps were covered with Gaboon ebony, cut from a blank 1/2-inch thick. The front edge faces of the sharps were sloped and the edges and corners were slightly rounded. The boxwood and ebony were glued to the key levers using hot hide glue (Brooklyn Tool and Craft, 192 gram strength). A straightedge was used to evenly align the ebony sharps relative to the front edge of the keys.
