Why are the words in most ancient poems singular?

Metric poems, including metrical poems and quatrains, are called modern poems or modern poems. The ancients called them that, and so do we now. Although they are actually very old, they originated from Qi Liang in the Southern and Northern Dynasties and came into being in the early Tang Dynasty.

It's cooked Poems before the Tang Dynasty, except the so-called "Qi Liang Style", are all called ancient styles. Poetry that does not conform to the modern style after the Tang Dynasty is also called ancient style.

There are differences between ancient style and modern style in syntax, rhyme and level tone;

Syntax: The number of words in each sentence in ancient style is uncertain, including four words, five words, six words, seven words and even miscellaneous words (uneven sentences), and the number of sentences in each song is also uncertain, ranging from two to dozens and hundreds. There are only five words in the near body.

There are two kinds of seven words, eight words in regular poems, four words in quatrains and more than eight words in parallel sentences, which are also called long laws.

Rhyme: each song in ancient style can use one rhyme, or two or more rhymes, and it is allowed to change rhymes; Each song can only use one rhyme, and even the arrangement of dozens of sentences cannot be changed. Antique can be used in even sentences.

Rhyme, even and odd sentences can rhyme. The near aspect rhymes only in even sentences, except for the first sentence, which rhymes with a flat voice and does not rhyme. Five words don't gamble, seven words gamble), and the rest.

None of the odd sentences rhyme; Antique can rhyme smoothly; Generally, only flat rhyme is used in the near body.

Smoothness: The biggest difference between ancient and modern styles is that ancient styles don't talk about flatness, while modern styles pay attention to flatness. After the Tang dynasty, the ancient style also pays attention to flatness, but it is irregular and can be ignored.

Classical poetry is basically metrical, so the following is only about modern poetry.