Here's an excellent tape of unrefined lo-fi Black Metal from Germany courtesy of Borgo. Some cheap sounding ambient keyboard pieces crop up between the quivering repetitive Black Metal songs. I think there might be vocals mixed way back under the hiss of the guitars but I can't hear them. This is exactly what I want a Black Metal cassette demo to be, obscure, noisy, and full of vague mystery. The sort of thing that sparks more questions than answers. The sort of thing that seems more like it had to be made more than it wanted to.