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Changing Progression
Just to prove the point that the chords are ‘creating’ the melodies, you can try the same melodies, with a different chord progression and they will work, albeit in a different turn of phrase.
For simplicity, try a 1, 5, 4 progression. In the C Major scale that’s C (1), G (5) and F (4).
This chord progression would look like...
...from which you may come up with this melody...
...or this melody...
Practice the 1, 5, 4 chord progression and these melodic examples.
Can you hear that the relationship still works but in a slightly different way?
Changing Scale
What if you don’t want to use C Major?
Let’s transpose this technique onto another scale. For simplicity, we choose the scale of A minor. The scale of A minor consists of the notes ABCDEFG (yes the same as C Major, no sharps or flats but beginning on A and not C).
This is the A minor scale...
The numerical order of the notes in the A minor scale is A=1st B=2nd C=3rd D=4th E=5th F=6th G=7th.
The 1st, 4th and 5th notes still have a special relationship, even though they are now A, D and E.
So using the 1,4,5 system and doing the same as you did with the C Major scale, you could come up with this 4 bar chord progression...
...which could lead to this melody...
...or this melody.



