The great large window of the lounge of El Capricho is opened in the main face. It is formed by five equal cavities, of forms that remember the Gothic, with windows of guillotine. The counterweights are metal pipes that emit musical notes on having practiced the windows. There remain two of the windows of colors. One represents a blackbird touching the keys of a piano and other one a dragonfly accompanying its singing on a guitar. Gaudí designed this ingenious set to do the delights of his client Díaz de Quijano, musician amateur.