Guitar tunings

"With the release of Fair Warning in 1981, Eddie staked more new territory with his use of drop-D tuning in a hard-rock context. Years later, the influence of drop-D cuts like “Unchained” and “Dirty Movies,” as well as “Sinners Swing,” would be felt in songs like Ozzy Osbourne’s “No More Tears,” Alice in Chains’ “Would?” and Rage Against the Machine’s “Killing in the Name.”"