A 术语 发明 by the futurist Luigi 卢梭洛 in 1913 as part of his 艺术 of 噪 Originally the 术语 was applied with reference to new 噪 乐器 噪器 that were played on their own as well as alongside 管弦乐 乐器 The 术语 evolved throughout the 数十年 and has often been 联合 with 作品 by Karlheinz Stockhausen who called for the emancipation of 噪 in many of his 早期 作品