This 术语 appears as a 类别 rather than 风格 and is designed to bring together (参考)文献 entries which approach as a thread the 用 and 本质(自然) of 噪 in 当代 樂/乐 from the 未来主义者 and Dadaists Cage 樂/乐 實/具体 实验 rock 樂/乐 朋克 声波 艺术 现场 电子 and 电子 to the present day