What did the man who has the work "Fratres" composed in 1985  and a commission of the Alban Berg Foundation?
Stabat Mater (Pärt): Stabat Mater is a musical setting of the Stabat Mater sequence composed by Arvo Pärt in 1985, a commission of the Alban Berg Foundation. Arvo Pärt:  His most performed works include "Fratres" (1977), "Spiegel im Spiegel" (1978), and "Für Alina" (1976).
Stabat Mater