Final answer:
Herbie Hancock is the jazz keyboardist known for blending funk and rock to create a danceable fusion genre, leveraging the combination of electric instruments and traditional African American music forms.
Step-by-step explanation:
The jazz keyboardist who combined funk and rock to create his brand of danceable fusion music is Herbie Hancock. Although not directly mentioned in the provided references, Hancock is renowned for his innovative approach to jazz, which involved the combination of electric instruments and various genres to form a groundbreaking fusion sound. Hancock's music was influenced by the rich history of African American music, which saw a combination of gospel, blues, country, jazz, and R&B that helped give rise to rock and roll. His work echoes the tradition of black musicians from Harlem and New Orleans, who pushed the boundaries of their art forms to reflect their lived experiences, just as W. C. Handy captured and shared the blues.