collaborating with Questlove of The Roots. The frequency of their collaborations led to her becoming a member of the Soulquarians - a collective formed of like-minded musicians, singers and rappers including Questlove, D'Angelo, Jay Dee, and Common (with whom she had previously worked in 1997). Unfortunately, by the time the songs for her follow-up album had begun to materialize, her spousal relationship with Benjamin had already broken down. Badu used the experience as inspiration for several of the songs that she would write, most notably "Green Eyes". Another event, the murder of Amadou Diallo by New York City Police, serves as the basis for the song "A.D. 2000". As with other Soulquarian collaborations, the majority of the album was recorded at Electric Lady, Jimi Hendrix's personal recording studio, which was also used to create several landmark albums by David Bowie, Stevie Wonder, and John Lennon. Other studios include Dallas Sound Lab and Palmyra Studios in her hometown of Dallas, TX. The sessions were informal, and took place simultaneously with D'Angelo's Voodoo and Common's Like Water for Chocolate, resulting in impromptu collaborations and a distinctive sound that can be found among the three albums. Renowned recording engineer, Russell Elevado, who was responsible for the mixing of all three albums, has stated that he used older techniques and vintage mixing gear in order to achieve the warmth found in older recordings. While most current recording techniques involve the use of hi-tech digital equipment, Elevado employed the use of analog equipment including vintage microphones and recording to tape. Release and reception Mama's Gun was released by Motown Records on November 21, 2000, and received generally positive reviews from critics. At Metacritic, which assigns a normalized rating out of 100 to reviews from mainstream publications, the album received an average score of 80, based on 16 reviews. Rolling Stone magazine's Touré said Badu abandoned the pretensions of Baduizm in favor of equally profound but more comprehensible lyrics. In The Village Voice, Robert Christgau wrote that she improved her ability as a composer on Mama's Gun and also took note of her lyrics: "Maybe her sources are autobiographical, but she’s here to inspire all black-identified women and the men who admire them." The A.V. Clubs Keith Phipps praised her lyrical themes and the album's "deceptively simple arrangements, a lovely breakup suite ('Green Eyes'), and near-infinite replay value". PopMatters critic Wayne Franklin found the record compelling