response: Did you also know that it has been recognized as a musical expression form since the 1920s?
original_response: Well it has been recognized as a major form of musical expression since the 1920s
history: I love jazz. I listen to it whilst working and studying. Many people see Jazz music as "America's classical music." I can see why, so many popular Jazz musicians are from old US.
knowledge: Since the 1920s Jazz Age, jazz has become recognized as a major form of musical expression.