This is to include all bands and artists that use or have used 7 String guitars:
Adagio
After Forever
All Shall Perish
Apartment 26
Arson
Assesino
Ayreon
Behemoth
Beneath the Massacre
Bloodflowerz
Cannibal Corpse
Cellador
Chimaira
Crimeny
Dave Weiner
Deftones
Delain
Diecast
Dimmu Borgir
Division
Dream Theater
Dreamscape
Emperor
End Theory
Epica
Evanescence
Fear Factory
Forever Slave
Fragment
Gizmachi
Hed(PE)
Immolation
Interlock
Ion Dissonance
Jag Panzer
James LaBrie
Joe Satriani
John Petrucci
Korn
Lacuna Coil
Linkin Park
Liquid Tension Experiment
Marcel Coenen
Mercenary
Meshuggah
Mithras
Mokoma
Morbid Angel
Muse
Mushroomhead
Nemesea
Nevermore
New Project
NYIA
Old Man's Child
Orgy
Outworld
Pig Destroyer
Ra
Rusty Cooley
Scar Symmetry
Slayer
Stam1na
Steve Vai
Strapping Young Lad
Stream Of Passion
Sun Caged
Textures
Through the Eyes of the Dead
Unearth
Within Temptation
Zero Hour
Adagio
After Forever
All Shall Perish
Apartment 26
Arson
Assesino
Ayreon
Behemoth
Beneath the Massacre
Bloodflowerz
Cannibal Corpse
Cellador
Chimaira
Crimeny
Dave Weiner
Deftones
Delain
Diecast
Dimmu Borgir
Division
Dream Theater
Dreamscape
Emperor
End Theory
Epica
Evanescence
Fear Factory
Forever Slave
Fragment
Gizmachi
Hed(PE)
Immolation
Interlock
Ion Dissonance
Jag Panzer
James LaBrie
Joe Satriani
John Petrucci
Korn
Lacuna Coil
Linkin Park
Liquid Tension Experiment
Marcel Coenen
Mercenary
Meshuggah
Mithras
Mokoma
Morbid Angel
Muse
Mushroomhead
Nemesea
Nevermore
New Project
NYIA
Old Man's Child
Orgy
Outworld
Pig Destroyer
Ra
Rusty Cooley
Scar Symmetry
Slayer
Stam1na
Steve Vai
Strapping Young Lad
Stream Of Passion
Sun Caged
Textures
Through the Eyes of the Dead
Unearth
Within Temptation
Zero Hour