The 术语 采用 by the 作曲家 Edgard Varèse to 描述 his 音乐 His 使用 of this 术语 reflects in 特殊 his insistence on the 音乐 潜力 of a widening 'palette' of 可能 声音 for 使用 in the concert hall in 特殊 打击乐 resources electronically-generated 声音 and 录制 声音 The 术语 is often cited in 试图 to 定义 音乐 and anticipates the 概念 of 音乐 as a 'plastic' 艺术 形（曲）式