[Lux Aeterna] "is as fine as any 'soundpiece' I have heard, and I am now quite willing to regard Crumb as one of the most important voices in this genre, right along with his European counterparts, Xenakis, Ligeti, and Penderecki ... The most remarkable thing about the piece is that every single sound in it seems to be just right."

Tom Johnson, Village Voice, 20 April 1972