Progressive rock

Gordon Giltrap

Folk · Acoustic

Groundhogs

Rock · Blues

Gryphon

Folk · Progressive rock

Guapo

Experimental · Progressive rock

Guy Manning

Progressive rock

Gypsy

Rock · Folk

Haken

Metal · Progressive rock

Halloween

Metal · Progressive rock

Halo Blind

Progressive rock · Atmospheric

Hands

Post Hardcore · Experimental

Hannah Frances

Folk · Singer-songwriter

Hanuman

DubStep · Progressive rock

Harvey Bainbridge

New Wave · Progressive rock

Hawklords

Rock · Progressive rock

Headspace

Rock · Alternative

Heather Findlay

Female vocalists · Alternative rock

Hello Mexico

Rock · Indie

Here And Now

Dance · Progressive rock

Horse

Rock · Hard Rock

Horslips

Folk · Celtic

Hourglass

Soft Rock · Progressive rock

Husband

Electronic · Progressive rock

I Ching

Jazz · Indie Rock

Ian Anderson

Rock · Folk

Icarus

Drum & Bass · Electronic

Il Volo

Progressive rock · Italian

InVertigo

Progressive rock · German

Ioearth

Rock · Female vocalists

IONA

Celtic · Progressive rock

It Bites

Rock · 80s

It's a Beautiful Day

Classic rock · Progressive rock

Jackie Mcauley

Folk · Acoustic

Jake Mattison

Progressive rock

Jakko M. Jakszyk

Progressive rock · Instrumental

James Jones

Progressive rock · Funk

JEBO

Folk · Classic rock