Black: Sabbath Вђ“ Paranoid

The album was recorded in just a few days at Regent Sound and Island Studios in London. It was born out of a period of immense creative fluidity where songs were often written immediately during rehearsals. 50 Years Ago, Black Sabbath Found Its Sound And ... - NPR

Released in September 1970, is widely considered the quintessential heavy metal album, defining the genre's sound, aesthetic, and lyrical depth. While Black Sabbath's self-titled debut earlier that year laid the foundation, Paranoid refined their "sludgy" minor-key style into a global cultural force. The Genesis of a Masterpiece Black Sabbath – Paranoid