ジミー・マクグリフ (Jimmy McGriff)

Jimmy McGriff
James Harrell McGriff (born April 3, 1936, in Philadelphia, Pennsylvania) is a soul-jazz organist and organ trio bandleader who developed a distinctive style of playing the Hammond B-3 organ.

He started playing piano at the age of five and by his teens, also learned to play vibes, alto sax, drums and upright bass. His first group was a piano trio, which found him playing bass in the band. When he joined the Army, McGriff served as an MP during the Korean War and settled in on a career as police officer for Philadelphia's finest, a gig which only lasted a little more than two years.
(Wikipedia: Jimmy McGriff)