Q:Information: - Free jazz is an approach to jazz music that was first developed in the 1950s and 1960s as musicians attempted to alter, extend, or break down jazz convention, often by discarding fixed chord changes or tempos. Though the music of free jazz composers varied widely, a common feature was dissatisfaction with the limitations of bebop, hard bop, and modal jazz that had developed in the 1940s and 1950s. Often described as avant-garde, free jazz has also been described as an attempt to return jazz to its primitive, often religious, roots and emphasis on collective improvisation. - Burton Greene ( born June 14 , 1937 ) is a free jazz pianist born in Chicago , Illinois , though most known for his work in New York City . He has explored a variety of genres , including avant - garde jazz and the Klezmer medium . - Hard bop is a subgenre of jazz that is an extension of bebop (or "bop") music. Journalists and record companies began using the term in the mid-1950s to describe a new current within jazz which incorporated influences from rhythm and blues, gospel music, and blues, especially in saxophone and piano playing. What is the relationship between 'burton greene' and 'piano'?
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instrument