Am is an A minor chord, and G7 represents the dominant seventh chord in C major

Among natural major, harmonic major, harmonic minor, and melodic minor, the dominant seventh chord Its nature is a major and minor seventh chord, and in natural minor and melodic major keys, it is a minor seventh chord. Dominant seventh chords are dissonant.

C Major (C Major) is a natural major key of music that starts with the C note. It consists of C, D, E, F, G, A, and B. It is a natural major key with no sharps. And the key of flat.

Songs in major keys are often bright and majestic; songs in minor keys are often soft and lyrical. In terms of chords, the song in C major uses the C chord at the beginning and at the end. Songs in A minor begin and end with the Am chord. Songs in the key of C major are mainly C, G, and F. A minor songs are mainly composed of Am, Em and Dm.

Extended information

C major is a stable, moderate white key, as quiet and clear as a valley, more tranquil and solemn than ordinary majors (such as Bach's C Prelude in major).

Chord is a concept in music theory, which refers to a group of sounds with a certain interval relationship. There are usually concepts such as triads, seventh chords, and thirteenth chords.

There are 7 basic chords in C major: C, Dm, Em, F, G, Am, Bdim, which are 1st, 2nd, 3rd, 4th, 5th, 6th and 7th degree chords respectively. . 1, 4, 5 are called positive triads, and 2, 3, 6 are called minor triads. 7th degree chords are extremely rarely used in popular music. Level 1 chords are also called tonic chords, level 4 chords are also called subordinate chords, and level 5 chords are also called dominant chords.

Baidu Encyclopedia-am

Baidu Encyclopedia-G7