This is one of two interlocking pairs of 术语 Natural/Cultural being the other one 相关 to 化 聆 and to the Quatre Écoutes in 舍费尔 理论

- Ordinary 聆 goes immediately to the 因果关系 of the 声波 its origins as well as its meaning écouter and comprendre in the quatre écoutes but which does 不 reflect on itself very much ouïr or entendre or how it 功能（函数）

- Practical 聆 专心 on a 特殊 manner of 聆 Take for 例如 the 声波 of galloping Ordinary 聆 hears it as the galloping of horses but the practical listenings can lead to different outcomes the acoustician seeks to 测定（确定） the 本质（自然） of the 物理 信号 the Red Indian hears 可能 danger of an approaching enemy and the 樂者/乐者 hears 节奏 groupings Paraphrase of Michel Chion 1983 Guide des Objets Sonores Eds Buchet/Chastel Paris 1995 translation by John Dack/Christine North