Do you need to open your voice before singing? Is there any way to open your voice quickly?

Opening one’s voice is a must for singers. Here’s a common example: why most singers’ concerts are held at night, because they “open” their voices all day long. Also, do you have Don’t you find it difficult to sing after getting up? That's right, so singers can't sleep after opening their voices, because their voices will "shrink" when they sleep. As for how to open their voices, my personal method is to slightly raise the pitch, imitate Yan Weiwen's pronunciation position, and cough a few times. Voice! Take another throat lozenge, and the total massage time only takes about 10 minutes. After clearing the sound, you can sing high notes without breaking the tone or going out of tune! And it doesn’t take much effort! You must relax when singing, not just any part of the body. Some singers don’t open their faces when singing, but relax their mood and sing with heart. Only by relaxing their mood can the breath and tone cooperate tacitly! I did it by hand! I’m exhausted...hehe... I hope this helps!