Along with the pop-soul and smooth soul that has been the foundation of the Soul Hits of the 70s: Didn't It Blow Your Mind series, Vol. 12 captures the first singles that hinted at disco. The heavy beats of Kool & the Gang's "Jungle Boogie," Manu Dibango's "Soul Makossa," Eddie Kendricks' "Boogie Down" and MFSB's "TSOP (The Sound of Philadelphia)" all point directly toward disco. These cuts are balanced by a number of smooth soul singles -- Harold Melvin & the Blue Notes' "The Love I Lost, Pt. 1," the Chi-Lites' "Stoned Out of My Mind," Bobby Womack's "Lookin' for a Love," the Main Ingredient's "Just Don't Want to Be Lonely," Al Wilson's "Show and Tell" -- plus the Mainstreeters' funky "Theme from Cleopatra Jones" and the O'Jays' classic "Love Train," all make Vol. 12 another terrific entry in this wonderful series.