Dona nobis pacem and Lux aeterna were both written for concert programs devoted to specific themes. They share the use of the techniques of minimalism in their organ parts, enabling the broad vocal lines in the choral voices to stretch out above this instrument, thus imparting a special aspect to the concerns addressed by the texts: the longing for freedom in the here and now, as expressed in the Dona nobis pacem, as well as the desire for peace and tranquillity in the Lux aeterna.