Cause I'm an ace when I face the bass
Double entendre here. When the bass is a beat, he’s an ace at rapping, and when the base is freebase cocaine, he’s an ace at dealing.
Also a play on the name of Swedish mid-90s pop sensation Ace of Base
Also a possible continuation of the Atlanta Braves theme, as an ace is the main starting pitcher for a baseball club, and they face the home plate base. The Braves of the early 1990s were known for their ace pitching staffs (anchored by Maddux, Smoltz, Glavine).
Crack Cocaine, the freebase form of coke is often referred to as BASE, or BASEHEAD. In this instance the homonym’s bass & base are used interchangeably, Nas is both an ace when he deals with crack or bass beats
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