• Aug 1, 2021 - 01:56

I'm trying to further understand the minor intervals at present.
In chordal playing we use 125 - C Db G for the minor chord and 135 for the major chord - CEG. How does that work for B C and E F?
I'm trying to put notes in my workbook on examples. But I'd like to understand better. I understand this is needed for ear training.
Cheers Michelle


C major chord is C - E - G.
C minor chord is C - E♭ - G.

Write out any major scale (Do Re Mi Fa etc.) and combining the first, third and fifth notes of that scale will produce the major chord (triad).
Making the third flat will produce a minor chord.

As mentioned, minor is 1 b3 5, not 1 2 5. And if it were 1 to 5, that would be C D G - numbers in this context always refer to degrees of the major scale built on the root, and 2 in a C major scale is D, not Db.

So to create major and minor triads on B, start by making a major scale on B, then take 1 3 5 from that scale for B major, 1 b3 5 for B minor. And so on for any other key.

I highly recommend my Basic Music Theory course for much more information on this type of thing:

Here is one of the relevant handouts from that course:

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