According to Wikipedia

Jazz is a music genre that originated in the African American communities of New Orleans in the late 19th and early 20th centuries. It is characterized by its roots in blues, ragtime, and European harmony, and it often features improvisation as a key element. Jazz integrates various musical styles, including African, European, and Native-American influences, and serves as a form of expression that reflects cultural integration and social dynamics. Jazz is also known for its rhythmic energy and ability to surprise listeners, making it a unique and evolving art form.

Smooth jazz is a fusion of jazz and easy-listening music, causing it to embrace jazz instruments and musicality while also being widely accessible. Many consider it a commercially oriented venture, as the softer sound appeals to a far broader audience than some of the more feverish jazz subgenres.

According to the Jazz Observer, jazz fans, by taking a closer look at smooth jazz, most people can see its merits, making it easier to appreciate. If you’re unfamiliar with this jazz subgenre, here’s what you need to know…. TRY IT!

References

What Is Smooth Jazz? | Jazz Observer

Smooth Jazz: A History Of Mellow Vibes | uDiscover