View post (Major Chords are 1, 4, 5 Why is this?)

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jarkko.eklund
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Joined: 09/25/13
Posts: 212
jarkko.eklund
Full Access
Joined: 09/25/13
Posts: 212
07/24/2017 5:14 am

That's because of the scale degrees and functions. A scale always starts with a chord in which key the scale is in.

A major key chord formula I-ii-iii-IV-V- vi- vii dim

A minor key chord formula i- ii dim- III- iv-v-VII

Uppercase means a mjor chord, and lowercase is a minor.