Eight melodies, one for each of the ecclesiastical modes, are given as optional additions to responsories and other chants in the 14th-century Speculum musicae of Jacobus of Liège. The melodies have paired phrases resembling those of contemporaneous dance music. The paucity of surviving melodies of this sort, and their almost exclusive association with secular music, make this series particularly fascinating.

中文翻译：

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窥器中的梅利斯玛斯

在列日的雅各布斯 (Jacobus) 的 14 世纪 Speculum musicae 中，八种旋律，一种用于每种教会模式，作为响应和其他圣歌的可选补充。旋律有成对的短语，类似于同时代的舞曲。这种幸存的旋律的匮乏，以及它们与世俗音乐几乎完全的联系，使这个系列特别引人入胜。