Mario Bauzá introduced bebop innovator Dizzy Gillespie to Cuban conga drummer and composer Chano Pozo. Gillespie and Pozo's brief collaboration produced some of the most enduring Afro-Cuban jazz standards. "Manteca" (1947) is the first jazz standard to be rhythmically based on clave. According to Gillespie, Pozo composed the layered, contrapuntal guajeos (Afro-Cuban ostinatos) of the A section and the introduction, while Gillespie wrote the bridge. Gillespie recounted: "If I'd let it go like wanted it, it would have been strictly Afro-Cuban all the way. There wouldn't have been a bridge. I thought I was writing an eight-bar bridge, but ... I had to keep going and ended up writing a sixteen-bar bridge." The bridge gave "Manteca" a typical jazz harmonic structure, setting the piece apart from Bauza's modal "Tanga" of a few years earlier.