Related Information for Opera Diabolicus OPERA DIABOLICUS is the brainchild of composer David Grimoire and lyricist Adrian de Crow. The idea sprung to life when the two of them met randomly at a stage play of Umberto Eco's book The Name of the Rose at a theatre in Gothenburg the year 2006. Both of them were very intrigued by the story and they ended up talking about how interesting it would be to make a theatrical and dark metal musical based on that kind of a story. The conversation between them that took place in Gothenbu.. read more