Frans de Waard has this to say about Cathedral in a recent issue of Vital Weekly:
CALEB DEUPREE - CATHEDRAL (MP3 by Treetrunk)
There is no relation, family that is, between Caleb Deupree and Taylor Deupree, other than a musical one. Deupree recorded this work over the period of one year, using piano, field recordings and processing. Hard to believe that is a piano at work here, but well, of course, its processed. That explains thing a bit. Its slowed down, torn apart, ripped to pieces, and then glued back together, using the computer as its concrete, and the various sound blocks as its building stones. One majestic piece of drone music, made from all of these piano sounds and nocturnal crickets, moulded into a piece of dark atmospheric ambience. Music that is not unlike its peers, say Monos, Mirror or Andrew Chalk, more than say all things microsound. Its there, its present, its thick, its layered, its audible - all those things that a lot of microsound isn't. Having said that this is a nice work, clocking at the cool twenty minutes, which I think is the right length, its also a work that hardly holds surprises for the lovers of the genre. Perhaps they don't want any, in which case they can start downloading right away. They won't be disappointed.