Few musicians have shaped the sound of heavy metal as profoundly as Geezer Butler . As the bassist and chief lyricist of Black Sabbath , Butler gave voice to a generation’s fears, questions, and rebellious spirit while redefining what the bass guitar could do in rock music. His thunderous riffs, darkly poetic words, and fearless creativity helped forge a style that continues to inspire musicians and fans across the world. This biography traces Butler’s journey from his childhood in Birmingham to his role as a founding architect of heavy metal . It explores his early musical awakenings inspired by The Beatles and Jack Bruce, his fateful partnership with Tony Iommi, and Bill Ward , and the rise of Black Sabbath as one of the most influential bands in music history. Beyond the stage, readers will discover the man behind the music: his lifelong devotion to family, his spiritual struggles, his commitment to animal rights and veganism, and his passion for Aston Villa Football Club. Through triumphs, hardships, and reinvention, Butler emerges not only as a heavy metal pioneer but as a thoughtful, principled figure who has remained true to his values while shaping a genre.