• Developing the 2-5-1 Progression in an Augmented Matrix

    In this post, we’ll be looking at the augmented matrix and how to use it to connect 2-5-1 chord progressions together. These are also known as the Coltrane changes.

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    The Coltrane Changes

    In jazz harmony, “Coltrane Changes” refers to substitute chord progressions made popular by jazz musician, John Coltrane. In this post, we’ll explore how it works.

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