“With Lux aeterna, Franz M. Herzog presents an impressive concert piece for mixed voices that with its dramatic interpretation of the content of the requiem mass represents a fascinating challenge for every dedicated choir. With an exceptionally expressive musical language, full of tension and suspense and characterized by cluster-like overlays of melodic lines and differing sound surfaces and pattern structures, he has produced a vivid, closely-woven musical setting of the final plea for eternal light.” (helblingchoral.com)