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 and his first name, referring to himself as the "Master of Mixology". Eve After Dark had a back room with a small four-track studio. In this studio, Dre and Yella recorded several demos. In their first recording session, they recorded a song entitled "Surgery", with the lyrics "calling Dr. Dre to surgery" serving as the chorus to the song. He later joined the musical group World Class Wreckin' Cru under the independent Kru-Cut Records in 1984. The group would become stars of the electro-hop scene that dominated early 1980s West Coast hip hop. "Surgery", which was officially released after being