19/06/2026
Diabolical Fullmoon Mysticism 🔥
1. Recording Details
💀 When: April 1992
💀 Where: Grieghallen Studios, Bergen, Norway — the same studio Eirik “Pytten” Hundvin used for Burzum, Mayhem’s De Mysteriis Dom Sathanas, Emperor’s In the Nightside Eclipse, and Enslaved’s Frost
💀 Producer/Engineer: Eirik Hundvin + Immortal
💀 Lineup: Abbath Doom Occulta – bass, vocals; Demonaz Doom Occulta – guitar, lyrics, layout; Armagedda – drums. It’s the only Immortal album with Armagedda
2. What the Band Has Said Recently About Making It
Abbath on the album’s legacy
In a MetalUpdate interview, Abbath said:
“Well, Diabolical is one of my favourite albums from Immortal. It's one of the albums I'm most satisfied with for the songs. It's totally the most darkest and most evil album of Immortal. It's very cryptic, a very strong debut. Pure Holocaust couldn't have been better; it's a good continuation and I'm very satisfied with it.”
He also noted Diabolical + Pure Holocaust + Battles in the North “came out just great,” but Blizzard Beasts “should have had better production”
🔥 Songwriting approach
💀 All lyrics by Demonaz
💀 Music by Abbath + Demonaz. Abbath wrote “Cryptic Winterstorms” and “A Perfect Vision of the Rising Northland” solo
💀 MetalBite’s “Black Metal Report” calls it “the only band that can TRULY be described as ‘snow metal’” and says the album was “just beginning to open the door to their vast 'n' epic universe of ice, isolation, battles, snow, storms, glaciers”
🔥 Production style
DeathMetal.org describes the production as “reasonable garagelike with some studio touches... Most sounds are discernible and guitar sound is clear throughout the album”. The “garage” feel + Pytten’s reverb-heavy Grieghallen sound became a blueprint for early ’90s Norwegian black metal.
3. “News” Context: Why People Still Talk About Its Making
Most recent coverage of Diabolical isn’t new recording news — it’s retrospective. But the album keeps coming up in Immortal drama:
💀 Abbath vs Demonaz split
Recent interviews still reference the early era. Demonaz has claimed Abbath “cancelled rehearsals and ruined the band's progress for a very long time” during later years, and “secretly applied for a trademark ownership of the band's logo and name”. VoiceMetal frames the split as black metal’s “inevitable hangover” and says fans wish the band would “go back to playing good music like on Diabolical Fullmoon Mysticism and Pure Holocaust”
💀 Armagedda’s only album
Diabolical was Armagedda’s sole appearance before leaving. The drummer slot was later filled by Erik “Grim” Brødreskift for Pure Holocaust. Abbath later spoke about Grim’s 1999 su***de: “He was a great guy... When he played with us, the same thing happened. He took an overdose of pills and Demonaz got him to the hospital in the nick of time”
4. Other Making-Of Bits from Reviews/Archives
💀 Influences: Often described as Bathory + Celtic Frost + Iron Maiden in the same room. Acoustic guitars were used to give the “aggressive, and cold melodies, a different approach”
💀 Not listed intro: The 1:35 “Intro” isn’t listed on vinyl, CD, or cassette
💀 Artwork: Logo + front cover by J.W.H., back cover photo by Stein Kare
Released: 1 July 1992 via Osmose Productions as CD, limited LP, picture disc, and cassette
If you want deeper “making of” material, the best sources are Abbath’s 2000s interviews with MetalUpdate and Pytten’s various Grieghallen retrospectives — though Pytten rarely does press. There hasn’t been a big 30th-anniversary documentary or re-recording news as of mid-2026.
