An abandoned rural house, the Ravel Quartet in F major and then rain, wind, snow and fog are the elements of which this video is composed. In an impossible procession, one take presents four atmospheric agents to strike against the house. The musical instruments which follow the quartet each become an audio track which corresponds to each one of the atmospheric agents. So the sound of the first violin drips like the rain, that one of the second violin is muffled like the snow, the sound of the viola moves like the wind and that one of the cello vibrates like the fog. In this work the causes of change are visible. The time of metamorphosis is concentrated or accelerated by the simultaneous status of its causes. As in music, in this video different atmospheric agents present themselves separately only to later achieve a meteorological chorus which is not seen in nature… The sound, become solid, undergoes climate agents.