The Constellation label is responsible for possibly the most wandering, messy (yet addictive) post-rock music known to man. But they're also heavier on the non-complacent artist than business types, so it's no surprise to hear someone like Glissandro 70 on the roster. While the tenuous duo (Sandro Perri of Polmo Polpo and Craig Dunsmuir of Guitarkestra) do visit strange territories, they focus their work on largely pulse-oriented and pastoral explorations. Single guitar notes are lovingly tweaked (digitally, but it translates as very organic) and layered alongside birdcalls; Amazonian war cries make friends with shakers, detuned cello drones and quasi-funk riffs; Perri and Dunsmuir turn chants (credited as "inspired by" Talking Heads and Juan Atkins tracks) into rhythmic beds over which they serve echoing wah-wah notes and bubbling electronics. For the closer, "End West," they snatch elements from the previous pieces for a 13-minute finale, something one might call "boot-stomping" or "trancey," or any number of lazy descriptions. As oddball as all this seems, the result is a very tasteful, gorgeous, listenable disc full of nooks and crannies you won't catch until 30 listens in. Yes, that is a guarantee that you won't tire of it for at least that long.