Ammons has had wide influence on countless pianists , such as Dave Alexander , Dr. John , Hadda Brooks , Johnnie Johnson , Ray Bryant , Erroll Garner , Katie Webster , Axel Zwingenberger , and the German pianist Joerg Hegemann .
A lot of pianist like Dave Alexander , Dr. John , Hadda Brooks , Johnnie Johnson , Ray Bryant , Erroll Garner , Katie Webster and Axel Zwingenberger named Ammons as main influence .