Tolong jelaskan mengenai Mastering: Eddy Schreyer dari Christina Aguilera (album)

A&R: Ron Fair, Elisa Yastic

Programming: Johan Aberg, Airiq Anest, Ron Harris, Khris Kellow, Paul Rein, Guy Roche

Drum programming: Airiq Anest, Robert Hoffman, Khris Kellow

Arrangers: Christina Aguilera, Ron Fair, Sherree Ford-Payne, David Frank, Khris Kellow, Steve Kipner, Travon Potts, Guy Roche, Brock Walsh, Matthew Wilder, Aaron Zigman

Vocal arrangement: Christina Aguilera, David Frank, Steve Kipner, Brock Walsh