Each song has its own music theory, and according to music theory, a song needs to have the following parts: notation, intervals, chords, rhythm, beat, etc. There are also relatively advanced contents - harmony, polyphony, musical form, melody, orchestration, etc.

Music theory is to stipulate how these parts need to be done so that everyone can understand the song.

If you don’t understand music theory, the arbitrarily composed song may only be understood by the author. And if the song is a chorus song, then the author needs to conduct it, because the conductor You need to understand music theory to conduct, and it is difficult to judge songs that are not written according to music theory, so the singers' songs all have a certain knowledge of music theory.

If a person has no knowledge of music theory and then writes a song by himself, then he needs to judge whether the song is complete.

Step one: check the reading and intervals. , chords, rhythm, and beats are complete, because these parts are the most basic components of a song, so if these parts are incomplete, the song will not be complete and will be difficult to understand. And it will make people feel that something is missing

The second step: let someone who can play an instrument play the song and let him feel whether there is anything inappropriate during the performance. place, let him bring it up, because the most important thing in writing a song is to be able to play it. If the song has not been played, it cannot be considered a complete song, and this can also help you check whether the song has What's more unpleasant to hear.

Music theory has important and positive significance for composition, arrangement, conducting and performance