Dr. Dre Nas' "Hustlers", and several beats on Eminem's Relapse album. Soul and R&B pianist Mark Batson, having previously worked with The Dave Matthews Band, Seal and Maroon 5 has been credited as the architect of this sound. Besides Batson, Aftermath producer and understudy of Dre's, Dawaun Parker, who has named Q-Tip and J Dilla as his primary influences, is thought to be responsible for giving Dre's newest beats an East Coast feel. Dr. Dre has said that his primary instrument in the studio is the Akai MPC3000, a drum machine and sampler, and that he often uses as many as four
Dr. Dre absence of radio airplay or major concert tours. The Federal Bureau of Investigation sent Ruthless Records a warning letter in response to the song's content. After Ice Cube left N.W.A in 1989 over financial disputes, Dr. Dre produced and performed for much of the group's second album "Efil4zaggin". He also produced tracks for a number of other acts on Ruthless Records, including Eazy-E's 1988 solo debut "Eazy-Duz-It", Above the Law's 1990 debut "Livin' Like Hustlers", Michel'le's 1989 self-titled debut, The D.O.C.'s 1989 debut "No One Can Do It Better", J.J. Fad's 1988 debut "Supersonic" and funk rock musician Jimmy Z's