There are two tones in one tone, the first tone is Gao Pingtiao, the second tone is treble, and the highest point is lower than level tone.
Three tones and four tones
The word "one tone and two tones" in Putonghua may not be equal in ancient Chinese, but "three tones and four tones" is generally vague in ancient Chinese.
The transformation from ancient Chinese to Putonghua is generally due to the "three tones of entering tone"
Rusheng belongs to Nuo, and its pronunciation is short, and it also retains the southern sound.
Northerners, I don't know,
Sichuan pronunciation is rising tone, but Mandarin is not rising tone. In ancient times, it was all Rusheng characters.
Nanyin is easy to judge. The present pronunciation is basically the pronunciation of ancient Chinese.
You can listen to Beijing opera to understand the four tones of Mandarin: each tone has a different pronunciation; You can understand Nanyin when listening to Kunqu Opera, and Cantonese Opera is also acceptable, but it is not the standard ancient Mandarin (modern Mandarin is Mandarin).