The term "jazz" (early on often spelled "jass") did not become popular until the mid and late 1910s, when New Orleans musicians first rose to prominence in other parts of the USA and the New Orleans style needed a new name to differentiate it from the nationally popular ragtime. Before then, the New Orleans style was frequently simply called "ragtime" (Sidney Bechet continued to call his music "ragtime" throughout his life), along with such local terms as "hot music" and "ratty music".