Uriah Heep (band) recording of the album, drummer Alex Napier was replaced by Nigel Olsson, recommended to Byron by Elton John. The debut was not popular with rock critics (especially in the USA where "Rolling Stone" reviewer Melissa Mills infamously promised to commit suicide "if this band makes it") but in retrospect the attitude towards it changed. "Those unfamiliar with Uriah Heep may want to try out "Demons and Wizards" or a compilation first, but anyone with a serious interest in Uriah Heep or the roots of heavy metal will find plenty to like on ..."Very 'eavy ...Very 'umble"," advised critic Donald A.
Heavy metal music of the sound. Deep Purple's Jon Lord played an overdriven Hammond organ. In 1970, John Paul Jones used a Moog synthesizer on "Led Zeppelin III"; by the 1990s, in "almost every subgenre of heavy metal" synthesizers were used. The electric guitar and the sonic power that it projects through amplification has historically been the key element in heavy metal. The heavy metal guitar sound comes from a combined use of high volumes and heavy distortion. For classic heavy metal guitar tone, guitarists maintain moderate levels gain at moderate levels, without excessive preamp or pedal distortion, to retain open spaces and