This 术语 提及 to the manner in which the 可能 vertical 范围（排列） of 人类 听觉 is characterised through the occupancy and 演变 of the 频率 content of 声

The 概念 is key to Spectromorphological 理论 and the 作曲家 and writer Denis Smalley introduces extremely detailed descriptive termninology in 频谱形态 Explaining Sound-shapes Organised 声 Vol 2 No 2 Cambridge Cambridge University Press 1997

It should be noted that it is difficult to separate this 概念 from the 感知 of 音高 harmonicity 音色 声 品质 and 运动