An American jazz pianist, bandleader, and composer, Ferd "Jelly Roll" Morton was a pivotal figure in early jazz. Active primarily in the early 20th century, he is often credited as one of the genre's originators, blending ragtime and blues with improvisation to create a new musical language. His innovative compositions and arrangements, such as "King Porter Stomp" and "Black Bottom Stomp," significantly shaped the sound and direction of jazz music.