This article that is base on tz and its musical form concretely illustrates the factual relationship of tz that is restraint and decided by music from the beginning producing process.

• 文章以词和它的音乐形式为立足点,从其产生的艺术理论基础出发,说明了在词产生之初,音乐从旋律、节奏、乐声和乐韵等方面对词的分片、句式、字声和用韵的决定作用及其具体体现。