It refer to the level of voice
Level 2 = Standard
Level 3 = High
The combination of the different levels gives a result [ rising / falling / non final]
it has levels
- 2 = standard (in initial position)
- 3 = high
it usually found in yes/no question [question with auxiliaries in initial position]
The level 3 receives stress [verbs / adjetives / nouns / adverbs / demostratives / negative form] = key words - contents
2. Falling Intonation
It has levels
- 2 = standard
- 3 = high
- 1 = low
it's usually found in
a) short wh/questions [questions with wh in initial position]
http://usefulenglish.ru/phonetics/listening-for-falling-and-rising-intonation
Intonation of American English
Pitch is raising and lowering the voice while speaking. The use of pitch is called intonation. The most well known use for English intonation is to communicate basic grammar, such as the use of a falling pitch on the sentence, "You're coming." compared to a rising pitch at the end of the question form, "You're coming?"
| Statement intonation |  | listen now |
| Question intonation |  | listen now |
Beyond that simple example, intonation is a complex world of personal choice and context-driven options. Understanding English intonation patterns will increase not only your spoken English pronunciation competence, but your English listening comprehension as well.
The terms "intonation" and "pitch" are often used interchangeably when talking about the "highness" or "lowness" of our voice when we speak. The difference between the terms is not very significant; in short, intonation is the use of pitch, just as mathematics is the use of numbers, or photography is the use of light and color. Intonation is a broader term than pitch. Being able to perceive pitch (the highness of lowness of our voice) leads to the use of correct intonation.
