Horace Parlan (Jan. 19, 1931, Pittsburgh, Pennsylvania, US – Feb. 23, 2017, Korsør, Denmark )
Hard Bop and Post Bop Pianist and Composer, Horace Parlan, was regarded for his work with Charles Mingus. His right hand was crippled due to polio, but this added to his unique playing style. He was also a Sideman to Archie Shepp and Sonny Stitt. He died in 2017; please take a listen here and have a great Saturday: Mingus Ah Um (Charles Mingus) 1959 Full Album, On the spur of the moment and Movin' & Groovin'
Source: https://en.m.wikipedia.org/wiki/Horace_Parlan