Ornamentation unwritten "rules"?

[noktai]

Hi! I don't actually play the Dizi, but I've been playing the ocarina and the tin whistle for a while. The tin whistle is usually played with a lot of ornaments that chinese music also uses (slides, taps, trills etc). I find that chinese music uses the ornaments in a different way which I much prefer.



Here's an example on the ocarina, it does lend itself quite well to chinese music if you ask me!
 
youtu.be/Z1SBqcOyPmw



I did find a list of all the different ornaments here soundofdragon.com/dizi/ .
I know there are unwritten "rules" for when to use which ornament but I can't quite lay my finger on it.


Here's kind of my conclusions so far. I believe the girl in the video uses the southern style, but I added the nothern style ornaments anyways.
(Southern style)
Dieyin 疊音 (‘layering note’)
Doesn't seem to be used so much? Really no clue when to use this one. I feel like the Dayin is used more often.

Dayin 打音 (‘marking note’)
Seems to be used when starting a phrase mostly, or when articulating a note in a fast passage. Not entirely sure which note in the passage should have this ornament though. Seems to be somewhere along the middle.

Lianyin 漣音 (‘ripple note’)
No clue. Alternative for a long note I would guess?

Chanyin 顫音 (‘trembling note’)
Seems the same as Lianyin to me.

Zengyin 贈音 (‘gift note’)
This one has a description on the usage at least! "This techniques is used in the end of a phrase/long tone by releasing the finger(s) immediately and stopping blowing at the same time"

Yiyin 倚音 (‘lining note’)
The girl in the video uses this one quite a lot, I love the sound! Seems to be used at the at of a phrase when there's a long note.

(Northern style)
Tuyin 吐音 (‘tongued note’)
Well tonguing is familiar to me so I get an idea on when to use it.

Huashe 花舌 (‘flower tongue’)
Only necessary in extremely fast passages for articulation.

Huayin 滑音 (‘sliding note’)
I don't the girl in the video uses a slide with multiple fingers. But I did notice in this Dizi video. 
youtu.be/wul6nubmJdU 
This one feels a bit more natural for me than the Yiyin.

Duoyin 剁音 (‘chopped note’)
Note sure if I understand this one.

Liyin 瀝音 (‘scattering note’)
Never seen this one so I can't quite get what it's supposed to sound like.

Fei 飛指 (‘flying fingers’)
Same as above, can't quite picture it.

Zhenyin 震音 (‘shaking note’)
Some sort of finger vibrato? Note sure, but I prefer to just use the diaphragm for vibrato.

Harmonics 泛音
Not really uses much for the ocarina I guess.

Houyin 喉音
This guy uses this a lot, I can understand when to use this. (This guy is absolutely amazing btw!)
www.youtube.com/watch?v=N2x0-vwdhiE


Anyone have any pointers on when the use which ornament? Thanks!

[mel]

The only "rule" I know of is that when there's a double note of the same pitch, the second one is usually played with ornamentation (often dayin). Other than that, my teacher would probably answer it's all "musical feeling". I personally come up with many of them by accident - I'll play the wrong note, quickly switch to the correct one and notice it actually made it sound better with my "mistake"

[hengdi]

Hey, noktai!
    First of all, thanks for gathering all the main ornaments in one place! Super helpful!! As Mel clearly stated, it is much depended upon spontaneity as to when to use these ornaments. That is a part of the whole artistry of the performer! But what would be best is to practice and understand each one of them first as an individual technique, and then, the musical discretion becomes more natural. Tip: If you are up to it, listen to 昆曲 (Chinese Opera)! You might find yourself getting into some super authentic Chinese stuff, but, in their singing is all of these techniques. Listen to 昆曲 (Kunqu) to understand the Southern Style of playing, and listen to 北曲 (Beiqu, or Beijng Opera) to understand the Northern Style of playing. In this, you may find your answer to Zhenyin 震音. You are right that it is finger vibrato, but it is also one of the main things that you hear in the Opera singing. Consider it as refined vibrato, where you can hear every single note within the vibrato. Once you develop an ear for it, it is one of the most amazing techniques on the Dizi. Zhenyin is usually used on a final long note (when a Chinese Opera singer finishes a singing portion).

Here is a link to an Opera (昆曲 if we want to be specific):

www.youtube.com/watch?v=CUPkUkLT69Y

Happy learning!