- Black Thought – rap
- Davis Barnett – viola
- Robert "LB" Dorsey – engineer
- Jenny Dilorenzo – cello
- Kirk Douglass – guitar
- Russell Elevado – mixing, recording
- Larry Gold – string arrangements, conductor, cello
- Jason Goldstein – mixing
- Kamal Gray – keyboards
- Kevin Hanson – producer
- Leonard Hubbard – bass
- Gloria Justin – violin
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- Dave Klutch – mastering
- Emma Kummrow – violin
- Malik B. – rap
- Steve Mandel – engineer
- Khari Mateen – producer, engineer
- Richard Nichols – producer
- Charles Parker – violin
- The Roots – performer, producer
- Jon Smeltz – engineer
- Igor Szwec – violin
- Ahmir '?uestlove' Thompson – drums
- Frank "Knuckles" Walker – percussion
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