One of Longhair's great contributions was his particular approach of adopting two-celled, clave-based patterns into New Orleans rhythm and blues (R&B). Longhair's rhythmic approach became a basic template of funk. According to Dr. John (Malcolm John "Mac" Rebennack Jr.), the Professor "put funk into music ... Longhair's thing had a direct bearing I'd say on a large portion of the funk music that evolved in New Orleans." In his "Mardi Gras in New Orleans", the pianist employs the 2-3 clave onbeat/offbeat motif in a rumba-boogie "guajeo".