Seven sequential chords in c major c dm em f g am bdim

That's what I always say. You can form chords of this key system by overlapping them three times on the basis of scales.

Let's introduce the "types" of chords first! Major triad, the word "big" here refers to three tones that are three degrees bigger than the root sound. The original text is Major, which also means big.

a complete statement is written; For example, Cmajor, Dmajor,,,, but now they are all abbreviated as C, D,, < P > The formula of this chord is Root+major third degree+pure fifth degree. Let me give two examples

C chord, that is, using C as the root sound and stacking his major third degree E on it, and then stacking the pure fifth degree G, that is, the chord internal sound of C is C, E, G. F# is the root sound, A# is the major third degree, and C# is the pure fifth degree, so the chordal intonation of #F is F#, A#, C#, the singing method is Fi(#Fa)Li(#La)Di(#Do), and the notation is #4, #6, #1. In this way, all major triad's intonations can be calculated, but remember.

Next, let's introduce a minor chord, again! The "small" here also refers to the three tones that form a third degree with the root sound. The original text is minor, which means small. Written in a complete statement; For example, DMInor, Eminor, abbreviated as Dm, Em ~ ~

formula is Root+ minor+pure fifth or two examples of EM chords, e is root, g is minor, b is pure fifth, and the internal notes are e, g, b, sung as mi, Sol, Si, and the notation is 357

bBm chords. F is sung as Sei(bSi), Ra(bRe)Fa, and the notation is b7b24. Similarly, all minor chords can be calculated in this way. < P > Let's talk about minor chords again. diminish, the meaning of reduction, is also called a minor chord for the pentatonic that forms a relationship of minus five degrees with the root sound, because this minor chord is composed of three chords, and

written as Cdiminish, ddinish,,, abbreviated as Cdim, Ddim,,,

the formula is R+ xiaosan+minus five degrees, for example,

Cdim=C, Eb, Gb. Ddim=D, f, Ab

If there is nothing wrong with your interval, I believe there is nothing wrong with it. Because of the third degree overlap, the seven chords generated in a key system are different

C will be Cmaj7 instead of C7, not to mention Cm7, Cdim7, Caug7

Other chords that overlap in minor must also be generated by the same method and overlap on the "harmony minor scale". As for the so-called harmony that overlaps on the natural minor scale, it is generated by mode (mode is another course).