Related Information for Nokturnal Mortum Nokturnal Mortum is a black/folk metal band from Kharkiv, Ukraine formed in 1994.Biography:They started as a death metal band named Suppuration in 1992, then turned to black metal and changed their name to Crystaline Darkness but had to change the name back in 1993/94 to Nocturnal Mortum because there already existed a band with that name in western underground. Then the band changed the letter so that we wouldn't find a band with the same name again like it was the case with Crystal.. read more