This section highlights composition in popular culture. However, some of these forms have unpopular beginnings or they pass through a popular phase before evolving into art or niche music. Such is the case with jazz, which was initially scoffed at as “devil's music” then became alienating to pop audiences as bebop emerged in the late 1940s. Also, bear in mind that popular music, as a historical and cultural phenomenon, predates the music industry itself—including the practice of charting. Billboard Magazine first introduced charting with “Chart Line” in 1936.