Five stars and favorited for this album, rather than "Yulquen". Amber is the best IDM release. Period. I've listened to it at least 100 times over the past two decades.
The exhale of "Piezo." But there is a problem: the whole album is so sublime, it kind of ruins later Autechre for me. My copy does not have that weird surface noise, hissing, at the end of this version.
I love TRI REPETAE a whole lot, too, but this was the album that made me fall deeply into electronic music the first time I heard it (I got it because I liked their track on a Scorn remix album).