Mutations on Dies Irae

Mutations on Dies Irae by Glenn Caluda is based on the well-known Gregorian chant sequence from the Requiem Mass that has been used as a basis for compositions by many composers, including Franz Liszt and Hector Berlioz. This piece uses the theme in many forms, sometimes complete, sometimes in fragments, and sometimes in tonal inversion, as in the Chorale section. It culminates in the chaos of the Furioso before returning to the resignation of the opening Adagio.