Abstract: A cushion having an oblique upper surface adapted to be interposed between the underside of a plucked string instrument such as a guitar or lute and thigh of the performer to facilitate positioning of the instrument at the proper oblique position and height for classical playing. The cushion is partially filled with styrofoam globules so as to enable shaping of its contour to the curved underside of the sound box of the instrument as well as to the profile of the thigh of the performer. The oblique upper surface is made from a vinyl plastic material so as to prevent any slippage between it and the sound box, the bottom surface is made from a napped fabric to prevent slippage on the clothing of the performer and straps are provided to enable the cushion to be strapped around the thigh.