Another fundamental chord is the minor chord. The difference between a major chord and a minor chord lies in the third note. Let’s take again our C chord as an example. If it is major, as we said, the notes that form it are:
C E G
In the case of C minor instead, the notes that form it are:
C Eb G
First of all let’s listen to it and notice the huge difference compared to the major chord. Usually, the sonority of a minor chord is associated with something melancholic or sad or, to going back to our weather metaphor, with a rainy or cloudy day.
Let’s see how it is represented in the chromatic circle. With the rubber band, let’s combine the notes C, Eb and G, and we will get:
Look at the triangle in the photo and try to figure out on which note the corresponding major chord is built.
Remember that the building rule is 4-3-5 and that the reading order must be clockwise:
Again a scalene triangle!
As highlighted on the chromatic circle, the intervals between notes are:
Since the intervals are all different, then the sides of our triangle are also different and therefore constitute a scalene triangle.
Comparing the two scalene triangles, do you notice any similarities? We immediately notice that they have one side in common, namely the one that leads from G to C. After all, comparing the two triads it is evident that:
That is, in both triads the notes C and G remain fixed. What changes instead is the relationship between C-E and C-Eb. That is to say: