The first refers to vibrato. Usually written in the right hand sound, it means the next sound. For example, the vibrato on 3 means fast 34343434343434, which is the specific duration of the sound. The symbols of the upper vibrato and the lower vibrato are different, and tr is the upper vibrato by default.

Second, vibrato refers to a special sound effect that one finger presses on the string while lifting the bow, and two adjacent fingers fall elastically on the string together.

Thirdly, if we press one finger on the string when lifting the bow, the two adjacent fingers are in the state of kneading the string, but we don't knead the string, but use the symmetrical cadence of the wrist joint to fall elastically together when kneading the string, and get the special sound effect that appears continuously and alternately. This bending effect is called "vibrato".

Extended data:

First, vibrato, in essence, is the vibration caused by the strong airflow hitting the back of the mouth and the nasal cavity when the song is interpreted with breath, and the lower abdomen produces airflow to the pressure of breathing.

Secondly, some singers "do" vibrato through the jitter of Adam's apple and the tightness of throat. These are some tricks or a style, but in many climax parts, there are also strong airflow vibrato.

Third, for pop songs, some low-key places don't need to breathe word by word like singing folk songs, sometimes like whispering, sometimes like sighing helplessly, and there won't be a strong airflow to support your vibrato. At this time, you need to use some tips to modify your ending. I don't think the vibrato of pop songs is completely prominent. Sometimes it's good to shake the Adam's apple and control the voice in your throat, as long as you are in the atmosphere of the song as a whole.

Fourth, learn the skills of vibrato, starting with imitation-imitating the call of an ambulance. This is just a way to find a way without a vocal music teacher around, which is certainly not a routine vocal music practice.

5. Make a "cry" (slightly faster) with the high and low sliding sound. It can make you feel the trembling Adam's apple. Slowly change the pronunciation of "Shout" to the pronunciation of "Mm-hmm", then slowly change it to the pronunciation of "You ~", and then sing some songs at the end of "You" ... Hehe, this is just to feel the trembling Adam's apple in a vibrato way.

References:

TR-Baidu encyclopedia