Clausen, René (1953) 
Requiem (2011) y Memorial (2003)
Compositor Estadounidense de Minnesota
Bio
https://en.wikipedia.org/wiki/Ren%C3%A9_Clausen
 http://www.reneclausen.com/bioninfo/biography.html
Es autor de un

Requiem
Info
Requiem was commissioned by the 

University

 of New Mexico to commemorate the 100th anniversary of their choral program. The 65-minute work employs nine sections of the traditional Latin text of Catholic Missa pro defunctis, or Mass for the Dead. It is scored for traditional concert orchestra, mixed chorus, soprano, tenor and baritone soli.

http://www.concordiarecordings.com/choral/REQCD.html

Y un

Memorial (col) 
(September Morning)
Dedicado a las victimas del 11 de Septiembre del 2001
for mixed chorus, orchestra and baritone solo
Info
http://www.concordiarecordings.com/product/2593.html

Añadimos

Prayer
Basada en el texto que rezaba La Madre Teresa de Calcuta
Musica
https://www.youtube.com/watch?v=-DXt7-S_yHQ