Resumen

NIETO, Velia. La forma abierta en la música del siglo XX. An. Inst. Investig. Estét [online]. 2008, vol.30, n.92, pp.191-203. ISSN 0185-1276.  https://doi.org/10.22201/iie.18703062e.2008.92.2264.

The breakdown of form in twentieth century music took place as one of the final expressions of a rupture of a tonal system that had prevailed through more than two hundred years. Gradually, new formal concepts emerged: aleatoric or chance music, stochastic composition, mobility, openness and grids. As such innovations took root, the musical forms that had been traditional for several centuries-such as the sonata, the concerto or the suite-started to disappear. Composers fostered this evolution with the help of the performer, who ceased to be a passive factor, assuming an active role in some aspects of the composition. The performer's contribution to the opening up of form will reveal for us a different perspective on creativity. This article analyzes the essential duality in the music and the new concepts that are replacing the traditional forms.