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Haurd rock (or hivy rock ) is a loose definit subgenre o rock muisic that haes its earliest ruits in mid-1960s garage rock , blues rock an psychedelic rock . It is typifee'd bi a hivy uise o distorted electric guitars , bass guitar , drums , an aft accompaniet wi pianos an keybuirds .

Haurd rock developed intae a major form o popular muisic in the 1970s, wi baunds such as Led Zeppelin , Deep Purple , Aerosmith , AC/DC , an Van Halen , an reached a commercial peak in the mid til late 1980s. The glam metal o baunds siclik Bon Jovi an Def Leppard an the rawer soonds o Guns N' Roses follaeed up wi great success in the later pairt o that decade, afore losin popularity in the face o grunge . Despite this, mony post-grunge baunds adoptit a hard rock soond an in the 2000s there came a renewed interest in establisht baunds, attempts at a revival, an new haurd rock baunds that cam frae the garage rock an post-punk revival scenes.

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