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Music Theory · Circle of Fifths

Circle of Fifths for Guitar — Modes & Key Relationships

The circle of fifths is the map of all 12 keys and their relationships — and it's the most powerful navigation tool in music theory. Understanding it means understanding why certain chord progressions feel natural, why keys are related, and how modes connect across the entire harmonic landscape.

What the Circle of Fifths Shows You

Moving clockwise around the circle, each key is a perfect 5th higher than the previous one: C → G → D → A → E → B → F♯ → D♭ → A♭ → E♭ → B♭ → F → back to C. Each step clockwise adds one sharp to the key signature. Each step counter-clockwise adds one flat.

Circle of Fifths and Modes

Every position on the circle has 7 modes built into it. The key of C Major (no sharps or flats) contains: C Ionian, D Dorian, E Phrygian, F Lydian, G Mixolydian, A Aeolian, B Locrian. The modes are embedded in every key on the circle.

Sharp Keys (Clockwise)G Major → D Major → A Major → E Major → B Major → F♯ Major. Each adds one sharp and shifts the modal relationships by a fifth.
Flat Keys (Counter-clockwise)F Major → B♭ Major → E♭ Major → A♭ Major → D♭ Major → G♭ Major. Each adds one flat.

Using the Circle to Navigate Modes

If you're in D Dorian, the parent major scale is C Major (D is the 2nd degree of C). On the circle, C is one position counter-clockwise from G. Knowing this, you can instantly find the parent key for any mode by moving counter-clockwise by the mode's position number.

The 5 Missing Notes and the Chromatic Circle

The Dead Sea Scales 5 Missing Notes™ system maps the 5 chromatic notes that fall between the circle-of-fifths keys — the notes that aren't in any diatonic major scale but create the exotic, jazz, and world music sounds when added. Understanding the circle of fifths is the prerequisite for understanding the 5 Missing Notes system.

Ionian ModeDorian Mode Phrygian ModeLydian Mode Mixolydian ModeAeolian / Minor Blues ScalesJazz Scales Metal ScalesMusic Theory

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DEEP DIVES

Why 42 Modes? Dead Sea Chords 2,048 Combinations Pentatonic Origins Where Notes Came From Guido d'Arezzo George Russell All Resources