Luis Cosme González - La Vihuela de Cristal for Guitar. "Sombras" is a work for guitar composed by three related movements that when played, we can see continuity in the different 'climax'. Written in free language, it is inspired in the shadows that are around us when we are for a long time in a room that leads to the street. The cars that cross, the trees and all the things reflected on the walls change depending on the day hours and the movement of the street.