Introduction

Heavy metal is a a development of blues, blues rock and rock. Its origins lie in the hard rock bands who between 1967 and 1974 took blues and rock and created a hybrid with a heavy, guitar and drums centered sound. Heavy metal had its peak popularity in the 1980s, during which many of the now existing subgenres first evolved. Although not as commercially successful as it was then, heavy metal still has a large world-wide following.