Metal
Heavy metal is a high-energy subgenre of rock defined by aggressive rhythms, heavily distorted electric guitars, powerful screamed or growled vocals, intricate double bass drumming, and lyrics exploring power, rebellion, darkness, fantasy, existential struggles, war, mythology, and inner turmoil.
Origin: United Kingdom and United States, emerging from hard rock with bands like Black Sabbath, Led Zeppelin, Judas Priest.
Era: 1960s onward, peaking in 1970s-1980s with evolution into thrash, death, black, power, doom, and other subgenres.
