Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  N'ọnwa Febụwarị afọ 1971, mgbe ha mechara otu ihe na Myponga Pop Festival na Australia, Black Sabbath laghachiri na studio iji malite ọrụ na album nke atọ ha. N'ịgbaso ihe ịga nke ọma nke Paranoid, e nyere ìgwè ahụ oge dịkwuo na studio, tinyere "akpa uwe jupụtara na ego" iji zụta ọgwụ. "Anyị nọ na-etinye aka n'ịṅụ ọgwụ cocaine, n'ụzọ dị ukwuu", ka Ward kọwara. "Ihe ndị na-eme ka mmadụ nwee obi ụtọ, ihe ndị na-eme ka mmadụ nwee nkụda mmụọ, ihe ndị na-eme ka mmadụ na-enwe obi ụtọ, ihe ọ bụla masịrị gị. Ọ ruru n'ọkwa ebe ị na-abịa n'echiche ma chefuo ha, n'ihi na ị nọ na ya. "Mee ka emechara na Eprel 1971, na July, ìgwè ahụ wepụtara Master of Reality, naanị ọnwa isii mgbe a tọhapụsịrị Paranoid na US. The album ruru n'elu iri na US na United Alaeze, na e gbaara ọlaedo na-erughị ọnwa abụọ, n'ikpeazụ na-anata platinum asambodo na 1980s na Ugboro abụọ Platinum ná mmalite narị afọ nke 21. O nwere abụ ndị mbụ nke Sabbath, tinyere ndị ọkacha mmasị dịka "Children of the Grave" na "Sweet Leaf". Nzaghachi ndị nkatọ nke oge ahụ adịghị mma, Lester Bangs na-enye nyocha nke Master of Reality na Rolling Stone, na-akọwa mmechi "Children of the Grave" dị ka "naïve, simplistic, repetitive, absolute doggerel <unk> but in the tradition [of rock'n'roll]... Nanị ihe e ji amata ya bụ mkpali, Black Sabbath nwekwara ya". (N'afọ 2003, Rolling Stone ga-etinye album ahụ na nọmba 300 na ha 500 Greatest Albums of All Time ndepụta.)  Ajụjụ: Gịnị ka òtù egwú ahụ ji ego e nyere ha mee?
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