Words and songs are long and short sentences, which are made according to the needs of singing. They are of the same nature and belong to music literature, so it is not easy to distinguish them.
Most of the intonations prevailing in Ci are only flat and flat, while the Southern Song Dynasty in the middle of Song Dynasty is divided into four tones: flat, upward, far and progressive. The four tones of Beiqu are divided into flat tone, rising tone and falling tone, and there is no entering tone. The entering tone has been sent to the flat tone, which is the rising tone and the falling tone respectively.
Quyun and rhyme are also different, and rhyme is stricter than Qu Yun's rules. Based on "The Rhyme of the Central Plains" written by Zhou Deqing in the Yuan Dynasty, the Central Song Dynasty and the Northern Song Dynasty were divided into nineteen rhymes, and all the entering tones were classified into three tones, namely, Ping, Shang and Qu, which was the biggest difference from rhyme. Music should not emphasize rhyme, and words should not emphasize rhyme, but it is best not to emphasize rhyme when writing music.
Words and songs have different characteristics in language, such as; The language of songs is popular, simple and natural, close to our ordinary life language. Although they all reflect social life, the social life level reflected by Ci is relatively narrow, while that reflected by Song is relatively broad.
Writing songs should follow the rules of Qupai, which is very similar to writing lyrics, and writing lyrics should also follow the rules of Qupai; However, there is a very different point between writing lyrics and writing songs, that is, songs can have interlining (interlining: Qupai has rules on the number of words in each sentence, but if the author thinks it is necessary, he can increase the number of words beyond the prescribed number. )