Sigullum Naturae is an album by Graal that was released on Moon Records in 1998. This album is progressive psychedelic black / death metal.
This album is really amazing and is an extremely unique black metal album. The album has an immense amount of technical skill. Guitars that are a mix of black metal, death metal, and psychedelic rock. Awesome and heavy use of bass guitar that sounds awesome and really helps push the unique sound. And dope drums that switch between very non-metal rhythms to jazz to metal. The composition of the tracks is really awesome. They’re progressive and the music really doesn’t sound that much like metal at times. The medlodies go allover the place, death metal, black metal, psyche rock, experimental, and really fun happy sounding stuff. The vocals are mostly lazy sounding and range in a few different styles black metal vocals and clean slow singing, and sound really dope. This album is really awesome and is really an experience.
As much as I hate pirating, the label KITSCH MAGIK has illegally re-released it as part of their “Copyright Infringement/ Bootleg” series, so you can listen to it and download for free there