
And for the second disc, we creatively went into our own zone and our own world together. "The first half of the album is kind of a throwback with elements of jazz, blues and soul music combined with a modern-day twist, like hard-hitting beats. The record also use elements with a 1920s circus theme. "There are no samples – It's all live music, except for Candyman", Aguilera related about the second disc. The songs are all live records except "Candyman" which features samples the military cadence "Tarzan & Jane Swingin' on a Vine", sampled from the album Run to Cadence with the United States Marines, Volume 2 and they were mostly written by Aguilera and Perry however, the theme remains organically vintage. The second disc is kept authentic, sticking to a really raw, old-soul sound.

Most songs employ record sampling except "Without You", "F.U.S.S.", and "Still Dirrty". It is also more "fakeness-driven" (as Aguilera stated on the Back to Basics CD enhanced video). The first disc is a throwback album with elements of '20s, '30s, and '40s blues and jazz with a modern-day twist, largely produced by beat-oriented producers, like DJ Premier. The songs in the two-disc album are constructed in different style. Aguilera was exposed to soul, jazz and blues records when she was a child because her mother used to bring her to look for vintage records.

Aguilera took inspiration for the production of the album from Billie Holiday, 90's R&B, Otis Redding, Marvin Gaye, Etta James and Ella Fitzgerald.
