list. Some reviewers expressed reservations. In Rolling Stone, Jody Rosen said Black Thought's "skilled but stolid rapping adds nothing new to the idiom" of the "morally ambiguous gangster tale", even though undun succeeds musically. Patrin found the storyline's "inevitable familiarity" to be "almost an end in itself" and that it "feels almost relentless in its singleminded dejection". Ian Cohen of Spin said Black Thought's reading of Redford Stephens sounded "business-like" and "consummately bland". Robert Christgau was also critical of the concept in his review for MSN Music, feeling that the song cycle lacks a feel for its fictional character, although he added that the album showcases a sound from The Roots "that shows no sign of standing pat". Of Black Thought's performance, he said the rapper offered "flashes of insight and articulated feeling" rather than wisdom. Track listing Personnel Credits for Undun adapted from liner notes. Ray Angry – producer Clifton Bell – inlay photography Mark Bengston – assistant engineer Leesa D. Brunson – A&R Dame "Tuba Gooding Jr." Bryson – group member, sousaphone Roberto Caiaffa – marketing Phonte Coleman – composer Levar Coppin – composer Robert "LB" Dorsey – engineer Kirk "Captain Kirk" Douglas – group member, guitar Daniel Felsenfeld – string arrangements Rick Friedrich – engineer, producer Larry Gold – arranger, cello Jason Goldstein – engineer, mixing Kenny J. Gravillis – art direction Kamal Gray – group member, keyboards D.D. Jackson – composer, producer Karl Jenkins – composer Karl B. Jenkins – A&R Doug Joswick – package production Mark Kelley – bass, group member Nick Koenig – engineer Phil Kramp – viola Dave Kutch – mastering Kristin Lee – violin Sean Lee – violin Tai Linzie – art coordinator, photo coordination Aaron Earl Livingston – vocals Steve Mandel – engineer, mixing Deborah Mannis-Gardner – sample clearance Mercedes Martinez – background vocals Khari Mateen – engineer, producer Hiro Matsuo – cello Deleno Matthews – composer Tracey Moore – background vocals John Morgan – assistant engineer Richard Nichols – A&R, art direction, executive producer, producer James Poyser – group member, keyboards, producer Brent "Ritz" Reynolds – engineer, producer Todd Russell – art coordinator, photo coordination Lenny S. – A&R Chris Sclafani – mixing assistant Sean C & LV – producer Jamel Shabazz – cover photo Jon Smeltz – engineer, mixing Sufjan Stevens – composer, engineer, mixing, producer Mark Tavern – A&R Anna Tes – design Ahmir "Questlove" Thompson – composer,