National Socialist Black Metal. black metal
which contains racist beliefs, essentially. NSBM bands are usually, musically speaking, of the kvlt
persuasion, with the local folk instruments thrown in here and there.
NSBM bands usually draw their lyrical inspiration from pre-Christian heathen traditions rather than Satanism, and usually ascribe or claim to ascribe to the standards of honour supposedly upheld by these ancestral folk.
Somewhat confusingly, NSBM is most popular in the Slavic regions of Eastern Europe; one of the biggest names in the scene, Rob Darken, is actually from Poland, surely the last place you'd expect anything remotely Nazi-esque to be taking root.
"Why listen to NSBM, man? Regular BM isn't extreme enough, you need it to be Nazi as well?"