The music of jazz has been around for a long time, and in spite of its age, jazz remains one of the most popular and influential genres. After the sound of big band jazz began to fade by the 1950s, the term jazz was used to describe a variety of different musical styles, and the definition was left up to the listener.
Jazz can be a difficult genre to define because it encompasses so many different styles. While the term jazz is often used to describe something that is fast-paced, a lot of jazz is labeled as slow, but that does not mean that all jazz is slow. This can cause some confusion for people who are new to the genre.