2+ Weeks into The 2026 Heavy Harmonies Donation Drive

Sep. 22, 2026: A bit over 2 weeks into the annual donation drive and we've reached 37% of the goal of covering the site's out-of-pocket expenses for the year. Thank you to everyone who has contributed thus far!

The drive will run through the end of October. If you find the site useful, please consider throwing a few bucks towards it. If you donate $20 or $50 for the year, you can earn a shiny user badge over on the HH Forum

Thank you for supporting Heavy Harmonies! -Dan

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THE Hard Rock and AOR Reference on the Internet!

Bands: 10792 CDS: 26665 Songs: 317347

Search Results

The search found 29 CDs upon which Karl Groom performed.

Musician	Artist	CD
Karl Groom	Edenbridge	The Grand Design
Karl Groom	Shadowland	A Matter of Perspective
Karl Groom	Shadowland	Cautionary Tales
Karl Groom	Shadowland	Dreams of the Ferryman
Karl Groom	Shadowland	Edge of Night
Karl Groom	Shadowland	Mad as a Hatter
Karl Groom	Shadowland	Ring of Roses
Karl Groom	Shadowland	Through the Looking Glass
Karl Groom	Threshold	Clone
Karl Groom	Threshold	Concert in Paris
Karl Groom	Threshold	Critical Energy
Karl Groom	Threshold	Critical Mass
Karl Groom	Threshold	Dead Reckoning
Karl Groom	Threshold	Decadent
Karl Groom	Threshold	Dividing Lines
Karl Groom	Threshold	European Journey
Karl Groom	Threshold	Extinct Instinct
Karl Groom	Threshold	For The Journey
Karl Groom	Threshold	Hypothetical
Karl Groom	Threshold	Legends of the Shires
Karl Groom	Threshold	March of Progress
Karl Groom	Threshold	Psychedelicatessen
Karl Groom	Threshold	Replica
Karl Groom	Threshold	Subsurface
Karl Groom	Threshold	Surface to Stage
Karl Groom	Threshold	The Ravages of Time (Best of)
Karl Groom	Threshold	The Singles Collection
Karl Groom	Threshold	Two - Zero - One - Seven
Karl Groom	Threshold	Wounded Land