God: Art Tatum

Wikipedia

Tatum is widely acknowledged as one of the greatest jazz pianists of all time[1] and he was a major influence on later generations of jazz pianists. He was noted for the complexity and speed of his performances, which set a new standard for jazz piano virtuosity.

NPR.

"The great stride pianist Fats Waller famously announced one night when Tatum walked into the club where Waller was playing, 'I only play the piano, but tonight God is in the house.'"