Bands: O

G: Guitar tabs
B: Bass tabs
D: Drum tabs
K: Keyboard tabs
PT: Power Tab tabs
GP: Guitar Pro tabs

Band

G

B

D

K

PT

GP

October Tide

4

1

Odious Mortem

9

10

On Thorns I Lay

2

Onslaught (UK)

10

Open Grave

2

Ophthalamia

2

Orange Goblin

2

Orphanage

1

Otyg

4

OXL

1

Pending bands (why?)

Obituary

Obliveon

Officium Triste

Old Man's Child

Opera IX

Opeth

Origin

Ozzy Osbourne

Overkill