2001 (Dr. Dre album) were later cut from the final track list. The tracks have been leaked later on several mixtapes, including "Pretox". The album's production expanded on that of "The Chronic", with new, sparse beats and reduced use of samples which were prominent on his debut album. Co-producer Scott Storch talked of how Dr. Dre used his collaborators during recording sessions: "At the time, I saw Dr. Dre desperately needed something. He needed a fuel injection, and Dre utilized me as the nitrous oxide. He threw me into the mix, and I sort of tapped on a new flavor with my whole piano
Dr. Dre from school jeopardized his position as a diver on his school's swim team. After high school, he attended Chester Adult School in Compton following his mother's demands for him to get a job or continue his education. After brief attendance at a radio broadcasting school, he relocated to the residence of his father and residence of his grandparents before returning to his mother's house. He later dropped out of Chester to focus on performing at the Eve's After Dark nightclub. In 1986, Dr. Dre met rapper O'Shea Jackson—nicknamed Ice Cube—who collaborated with Dr. Dre to record songs for Ruthless Records,