Ab phrygian dominant

Construction

Step pattern (W = whole step, H = half step): H-A-H-W-H-W-W (A = augmented second, 3 half steps).

Formula (intervals from the root): 1-b2-3-4-5-b6-b7.

Phrygian Dominant shares the b2 of Phrygian (a minor mode built on the 3rd degree of the major scale) but replaces b3 with a natural 3 -- that one degree transforms the quality from minor to dominant. Compare to Phrygian: Phrygian has b3, Phrygian Dominant has natural 3.

Origin and Relationships

Phrygian Dominant is a mode -- a scale derived by starting a parent scale from a different degree.

• Parent scale: 5th mode of harmonic minor. To find the parent, go down a perfect 5th from the Phrygian Dominant root -- that note is the harmonic minor tonic.
• Family: Part of the harmonic minor system. The augmented second (b2 to 3) is the same interval found between b6 and 7 in the parent harmonic minor, relocated to the bottom of the scale.
• Alternate names: Also called Hijaz (Arabic maqam tradition), Ahava Rabbah (Jewish liturgical music), or Freygish (klezmer tradition).

Harmonic Context

In Roman numeral analysis (uppercase = major, lowercase = minor):

• V7 (dominant seventh): The scale's primary home. Phrygian Dominant over V7 resolving to minor is its most common use -- the b2 becomes the b9 (a chord extension one half step above the root of the chord), adding tension without losing function.
• V7b9: The natural extension of the V7 context. The b9 intensifies the pull toward minor resolution.
• bII (major): A major chord built a half step above the tonic, sometimes called the Neapolitan chord in classical harmony. Moving from bII to V7 to i creates a descending bass line rich in tension.
• i (minor): The resolution target. Phrygian Dominant lives on V7; the phrase ends on i.

Characteristic Tones

The intervals that give this scale its distinctive sound:

• b2: The scale's most distinctive color. This half step above the root creates the tension heard in flamenco cadences and klezmer melodies -- the interval itself, not just the genre label, carries the weight.
• 3 (major third): What separates this from Phrygian. The natural 3 gives the scale dominant function, enabling V7 chord support that Phrygian's b3 cannot provide.
• The b2-to-3 augmented second: This 3-half-step leap early in the scale is its melodic signature, inherited from the parent harmonic minor and placed front and center.

Melodic Applications

Over V7 resolving to minor, target the 3 of the chord and let the b2 act as an upper neighbor that pulls downward or leaps across the augmented second. The b2-to-3 movement is the signature phrase -- use it to signal the scale's identity before settling into chord tones. In flamenco and klezmer contexts, the scale often sits over a drone on the root, where the b2 and b6 create tension against a static bass. Compare to Mixolydian: both serve dominant chords, but Phrygian Dominant implies resolution to a minor tonic while Mixolydian implies resolution to major -- that functional distinction is the real decision point between them.

Practice Seeds

Augmented second drill. Play b2 to 3 ascending and 3 to b2 descending in varied rhythms. Build fluency with the scale's defining leap so it becomes a deliberate color choice, not an accident.

V7-to-minor resolution. Improvise over a V7-i vamp using only Phrygian Dominant tones. Listen for how the b9 (the scale's b2) intensifies the pull to minor -- this is the scale's core function.

Phrygian comparison. Play Phrygian and Phrygian Dominant from the same root, back to back. Hear what the natural 3 changes -- minor becomes dominant, and the whole character shifts from brooding to charged.

Andalusian cadence. Over a descending four-chord progression ending on a major I chord, use Phrygian Dominant on that final chord. The scale locks into the stepwise bass descent that defines flamenco harmony -- the major quality of the I chord is the reason Phrygian Dominant fits here rather than plain Phrygian.