Progressive jazz is a genre that blends elements of traditional jazz with avant-garde music. It includes various sub-genres, each with its unique characteristics and techniques. Some synonyms for progressive jazz include avant-garde jazz, experimental jazz, fusion jazz, and free jazz. Avant-garde jazz emphasizes on improvisation and is characterized by unconventional sounds, while experimental jazz blends other music genres into jazz. Fusion jazz incorporates elements of rock, funk, and soul, while free jazz emphasizes on improvisation and individual expression. Progressive jazz artists include John Coltrane, Miles Davis, Ornette Coleman and Herbie Hancock. These different sub-genres offer a vibrant and diverse jazz scene, all encompassing its innovative spirit and continuous evolution.