Obstructed is a raw and noisy crust band from Oulu / Finland. They are formed in '06, have released this demo cd-r in '07. Their music is 100 % improvisation. The explain that by: "The idea of playing improvised crust we got from the crappy bands, which made us think if it's possible to create better songs than they have just by playing whatever riffs comes first in mind, shouting whatever comes to our mind. So we tried and got some stuff recorded. And it was hell of a fun!" The demo is released on Attack To Society Distro, i believe there are still some copies and you can get for a nice price.