Horace Parlan was an American jazz pianist from Pittsburgh, Pennsylvania, who began his professional career in the 1950s and became associated with hard bop, soul jazz and post-bop styles. After a bout of childhood polio that affected movement in his right hand, he developed a left-hand-driven comping and rhythmic approach and later moved to Copenhagen, where his work engaged with European jazz scenes and explored blues-inflected grooves alongside more modern post-bop textures.