Jimmy McGriff was a preeminent American jazz, blues, and soul organist and bandleader. His style, characterized by a unique blend of gospel-infused blues and hard bop, made him a potent force in the Hammond B-3 organ world. McGriff's signature sound was showcased in his influential works such as "I've Got a Woman" and "The Worm", which had significant impact on jazz and R&B music. His musical contributions greatly influenced the evolution of organ playing in these genres.