Anthony Frank Iommi is an English guitarist, songwriter and producer. He was lead guitarist and one of the four founding members of the heavy metal band Black Sabbath. He was the band’s primary composer and sole continual member for nearly five decades. While working in a factory as a teenager, Iommi lost the tips of the middle and ring fingers of his right hand in an accident, an event which crucially impacted his playing style. Iommi was ranked number 25 in Rolling Stone magazine’s list of the “100 Greatest Guitarists of All Time”.