The Mater series was created for use in a multimedia production of Mater in Memoriam: For Irene a requiem for women's voices that was performed in Ventura, CA on June 21, 2003.

Mater was composed by Naomi Stephan in honor of her mother, with lyrics by Sue Moore.

from the composer's notes: Written originally for All Soul's Day as a recessional for SA and hand bells, Now You Go is a musical farewell I wasn't able to offer her at the time of her death. This final piece portrays a reconciliation of Irene's Christian faith with my more ecumenical, spiritual orientation. The Dona Tibi Pacem is a parting nod to Latin Liturgy, concluding with a female centered ending. The university chimes we both knew accompany this farewell.