The term Joplin's 'Maple Leaf RAG' is a ragtime composition written by Scott Joplin in 1899. The crossword solution for this term is RAG, which is a musical style that originated in the United States in the late 19th century. It is characterized by syncopated rhythms and a strong emphasis on improvisation. Joplin's 'Maple Leaf RAG' is one of the most famous examples of ragtime music and is considered to be the first ragtime hit.