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 bass who played Hammond organ on some songs or the bassists from mainstream metal bands such as Styx and the Scorpions who use a pedal keyboard, which is played with the feet. Professional metal bassists may have a bass technician who tunes their basses before and during a performance, sets up the speaker cabinets, amplifiers and effects units, and performs routine maintenance on the instruments and equipment (e.g., changing strings, replacing speakers, replacing amplifier tubes, etc.). In relation to the gender composition of heavy metal bands, it has been said that "[h]eavy metal performers are almost exclusively male" "... [a]t least