Hard Rock

Originating in the mid-1960s from the frameworks of blues rock and psychedelic rock, hard rock is a subgenre defined by aggressive, amplified instrumentation. Its sonic core is built upon distorted electric guitars employing power chords, pentatonic scales, and prominent riffs, supported by a forceful rhythm section of bass and drums. The ethos often channels themes of rebellion and hedonism, delivered through powerful, high-range, and melodic vocals. This approach shaped the template for heavy metal and its derivatives while achieving widespread commercial success, cementing its place as a foundational pillar of mainstream rock music through the 1970s and 1980s.