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Geezer Butler's Basses and Gear Explained + Iommi's Exclusive Statement About Mysterious Wah Used on Black Sabbath's Debut | Articles @ Ultimate-Guitar.Com
Hit the Tone! Black Sabbath's Paranoid – t.blog
Ashdown Geezer Butler Pedal of Doom | Sweetwater
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Geezer Butler Amplifier Rig - Black Sabbath "Know Your Bass Player" (2/3) - YouTube
GET THE SOUND – Black Sabbath, Geezer Butler on Digbeth - Laney
Geezer Butler Pedal of Doom?!? | TalkBass.com
Ashdown Engineering Announces the Geezer Butler Pedal of Doom - Bass Magazine - The Future of Bass
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GET THE SOUND – Black Sabbath, Geezer Butler on Digbeth - Laney
EMG Geezer Butler Signature Precision P-Bass Alnico-5 Pickup Set