Harmonic Analysis: Diatonic Chords


HARMONIC Analysis:
Diatonic Chords

In order to translate chords from their letter names to Roman numerals, you must first find the key in which they came from. Understanding the diatonic chords in a major scale helps makes this translation efficient and effective. Here are 2 methods of translation:

  • Consecutive Major and Minor Chords

  • Circle of Progressions

Learn more about each method below.

Consecutive Chords

Consecutive Major and Minor Chords

Look for two major chords (IV + V) and/or two minor chords that are a letter away (ii + iii) to help find the parent scale.

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Circle of Progressions

Circle of Progressions

Find chords that have roots that move through the circle of fourths with qualities that match iii vi ii V I.


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Cheat Sheet

Major Key Cheat Sheet

Use the chart to help determine the key of a song.

 
 
 

MORE RESOURCES


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Piano Roll Mastery

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Subdivision: Sixteenth Note Triplet