To be honest, once you take the improvisational element out of jazz, a piece of music can be kinda jazzy, or use jazzy chords, but it's never coming from the same place. And metal is one of the most heavily composed styles there is, not relying on experimentation much at all once the composition is written. The drum fills, solos etc are almost always written in a way where they're exactly the same every time they're performed, and you can't improvise a bass part and a guitar part together with so much distortion going on, no-one does it, and it would sound like mush. So metal is utterly the opposite of jazz in the way the music is approached.
Jazzy sounding stuff? I'm not sure, but the things people call jazz metal have a lot more in common with metal than jazz. I love Aghora's first album, but I hear very little that's jazzy in there.
Jazzy sounding stuff? I'm not sure, but the things people call jazz metal have a lot more in common with metal than jazz. I love Aghora's first album, but I hear very little that's jazzy in there.