YMMV / Sigh

• Awesome Music: Lots of it. Infidel Art, Ghastly Funeral Theatre, Hail Horror Hail, Scenario IV, Imaginary Sonicscape, Hangman's Hymn, and In Somniphobia are particularly recommended, but you basically can't go wrong with any of their core discography.
• Complete Monster: In "In the Mind of a Lunatic", the titular lunatic is Jack the Ripper himself. He has been "killing off the corner whores", bringing "a scene of gore". He manages to blend into the crowd, with London having no idea who he is. Eventually, "the killings ended but the case was never solved...It's a mystery that's lasting 'till this very day."
• Genius Bonus: The Chopin snippet in "Requiem - Nostalgia" qualifies. The excerpts from Mozart's Requiem in D Minor on Hangman's Hymn do as well. For that matter, so do the lyrical references to works like Oedipus Rex and Paradise Lost.
• Memetic Mutation: "Metal is something cool", which is basically their reaction to Visual Kei. They never explicitly loathe the scene, however.
• Viewer Gender Confusion: A listener could be excused for thinking Dr. Mikannibal's shrieks were performed by a man. They're actually lower-pitched than Mirai's a lot of the time!