1, practicing qi, singing is not important, what matters is qi. Many out-of-tune partners are unlucky, so their voices can't be uttered, and it is easy to be out of tune if they are not angry enough.
2, practice lung capacity, singing should have enough lung capacity, this should be known to many people. The best way to practice vital capacity is jogging. This exercise is very good. Besides improving the problem of singing out of tune, you can also exercise, killing two birds with one stone.
3, practice pronunciation and tone, singing is different from talking, singing needs to be pronounced in the chest, abdominal force.
4, will open your voice, open your voice to find a song you like, and sing it in different tones. Or simply use ah instead of lyrics.
5, sing more, learn the previous pronunciation skills, be sure to try the song. Find some songs with simple tones that you like, and sing along with them while listening.
6. Try listening to music. I can't hear my timbre with the original singer. Everyone has a different understanding of music. Choose some familiar songs, learn to listen to accompaniment, and add your own songs. Practice one song, and the rest will be easy.