Related Information for Tephra Tephra was a band from Braunschweig, Germany that founded in the end of 2003. Before they formed Tephra, all the members played in various musically quite diverse local bands. This influences the band in many different ways. Tephra has developed a unique atmospheric sludge metal sound stemming from many different sources of inspiration.Their first release -as a four piece band was a self-produced demo cd containing four songs.In the beginning of 2005 they entered the studio.. read more