There is a quality to the music of Silver Mt Zion and their older brother Godspeed You! Black Emperor that I have never experienced anywhere else - not even from the many other 'post-rock' outfits who produced music in a similar vein. I remember the first time I heard Godspeed - everything else just got blown away. Now, most music just falls short in comparison.
For many years Efrim Menuck et al have produced some of the most engaging, interesting and challenging music around and while Kollaps Tradixionales may not be their best ever, it is up there and they certainly continue to hit the mark.
There seems to be a split in opinion on the vocals on Silver Mt Zion records. I personally think they work perfectly. He's never going to win any awards for techincal vocal competence, but to me this just adds to the sense that at times the music is just on the brink of control - and that is what makes it so exciting.