Postmodern music is either simply music of the postmodern era, or music that follows aesthetical and philosophical trends of postmodernism. As the name suggests, the postmodernist movement formed partly in reaction to modernism. Even so, postmodern music still does not primarily define itself in opposition to modernist music; this label is applied instead by critics and theorists. Postmodern music is not a distinct musical style, but rather refers to music of the postmodern era. The terms "postmodern", "postmodernism", "postmodernist", and "postmodernity" are exasperating terms (, 3). Indeed, postmodernists question the tight definitions and categories of academic disciplines, which they regard simply as the remnants of modernity (, 6–7).