1 can be matched according to the principle that the decimal places of each item obey the majority. For example, 1 155 can match the first chord 135, and 665 can match 46 1. Of course, this is the easiest way. Matching music sounds audible, but it is usually very different from the original music. It is common sense that you put oil and salt on vegetables, but some vegetables are vegetables, but you can eat them without garlic and pepper.

2. This method is much better by learning the basic knowledge of music theory, then listening to other people's songs and harmony with the help of music theory knowledge, and then converting them into corresponding chord names. Usually, people who compose guitar scores and piano scores can't get the original scores. It's all based on listening, and then combining music theory knowledge to make a chord score. Just like you want to learn to be jiaozi. After eating jiaozi, you will know what's in jiaozi, combined with common cooking methods.

Chords come from Greek χ ο ρ? A concept in music theory refers to a group of sounds with a certain interval relationship. Three or more sounds are vertically combined according to the overlapping relationship of three degrees or non-three degrees to form a chord.

Trichord: There are usually three chords (three chords), seven chords (four chords), nine chords (five tones), eleven chords (six tones) and thirteen chords (seven tones). Non-third-degree chords usually include: hanging chords, strong chords (that is, fifth-degree chords) and so on. However, there is no such thing as 32 chords, 40 chords or even 64 chords! Strictly speaking, "chord bell" is a commercial concept, which is not in line with music theory, but its timbre is fuller and rounder, and it can give people beautiful enjoyment in hearing. But in the industrial design of audio equipment, chords are also called polyphony, which means that multiple sound sources are pronounced at the same time. Generally speaking, on the piano, there are three chords and seven chords, and there are few nine chords. In guitar, chords are usually swept and decomposed, and another chord has many methods of bending.

Reference: Chord Baidu Encyclopedia