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 producer in his own right, contributed to Dr. Dre's second album "2001"; Storch is credited as a songwriter on several songs and played keyboards on several tracks. In 2006 he told "Rolling Stone": Current collaborator Mike Elizondo, when speaking about his work with Young, describes their recording process as a collaborative effort involving several musicians. In 2004 he claimed to "Songwriter Universe" magazine that he had written the foundations of the hit Eminem song "The Real Slim Shady", stating, "I initially played a bass line on the song, and Dr. Dre, Tommy Coster Jr. and I built the track from