Perhaps more than any other form of music, jazz music means America.
            
 Jazz music, like America itself, is a melting pot of ideas, emotions, and
            
 traditions.  According to Joachim Berendt, jazz is a form of music that
            
 emerged in the United States as a combination of African American and
            
 European music.  The instrumentation, melody, and harmony are influenced by
            
 Western music while the rhythm, phrasing, and production of sounds are
            
 influenced by African American music.  When we examine at the history of
            
 jazz, we encounter a variety of musicians and styles that are unique and
            
 impressive in practically every way.
            
    Undoubtedly, jazz us unique and important to the soul of American music.
            
  One incident that emphasizes the significance of jazz occurred in 1977.
            
 This was the year that NASA launched Voyager I and included a recorded
            
 greeting for anyone who might discover it. This recording included the jazz
            
 greats Louis Armstrong and Blind Willie Johnson as representatives of
            
 American culture.  That NASA would include jazz musicians indicates the
            
 significance that jazz music has had not only on American music, but music
            
    While jazz is distinctly American, it can sometimes be difficult to
            
 define.  One thing that almost everyone can agree upon is the fact that
            
 jazz has been a "progenitor of new forms, an inventor of new languages, a
            
 creator of new ways to express meaning" (Gennari 1991 439).  Another aspect
            
 about jazz music that sets it apart is the fact that it hinges on process
            
 instead of form.  Gennari notes that this allows for jazz to generate new
            
 meaning with almost every performance.  Because of its subversion of
            
 traditional cultures and its "reshaping of aesthetic and social boundaries,
            
 jazz has helped define the cutting edge of twentieth century Western
            
    A close cousin to jazz is the blues.  Shipton notes that two are "genres
            
 are joined at the hip like Siamese Twins" (Gioia 1997 4...