Scale Theory

A Phrygian Scale: Notes, Chords, and How to Play It

By Interactive Chord Finder ·

A Phrygian is one of the most guitar-friendly Phrygian keys after E. The open A string provides a natural drone, and the half step from A up to B♭ — the defining ♭2 — delivers an immediately recognisable dark, Spanish character. Metal guitarists, flamenco players, and film composers all gravitate toward A Phrygian for its combination of accessibility and exotic power.

Notes of the A Phrygian Scale

The A Phrygian scale contains seven notes:

A – B♭ – C – D – E – F – G

These are the same notes as the F major scale, but with A as the tonal centre. The Phrygian mode follows the interval pattern H – W – W – W – H – W – W.

DegreeNoteInterval from RootStep to Next
1 (Root)AUnisonHalf step
♭2B♭Minor 2ndWhole step
♭3CMinor 3rdWhole step
4DPerfect 4thWhole step
5EPerfect 5thHalf step
♭6FMinor 6thWhole step
♭7GMinor 7thWhole step
8AOctave

The half step between A and B♭ (degrees 1–♭2) is the defining Phrygian interval. For a broader overview of all seven modes, see Modes Explained: Dorian to Locrian.

A Phrygian on Piano

A Phrygian contains one flat (B♭) with all other notes on white keys. On piano, this makes it nearly as intuitive as E Phrygian — start on A and play all white keys except B, which becomes B♭.

Right hand fingering (ascending): 1 – 2 – 3 – 1 – 2 – 3 – 4 – 5 (thumb crosses under after C)

Left hand fingering (ascending): 5 – 4 – 3 – 2 – 1 – 3 – 2 – 1 (after the thumb plays E, the third finger crosses over to F)

Play an A minor chord or an open A in the bass as a drone while exploring the scale. The A–B♭ half step will immediately set the Phrygian mood. Notice how the sound differs from A natural minor, where the 2nd degree is B natural.

A Phrygian on Guitar

On guitar, A Phrygian starts on the open 5th string. The open-position pattern is comfortable and uses familiar chord shapes.

Open position (low to high):

StringFretNote
5th (A)openA
5th (A)1B♭
5th (A)3C
4th (D)openD
4th (D)2E
4th (D)3F
3rd (G)openG
3rd (G)2A

The half step from the open A string to the 1st fret (B♭) is the Phrygian sound at its most physical — the finger falls naturally into the half-step position. Try alternating between these two notes to internalise the tension.

Use the guitar fretboard view in the Interactive Chord Finder to see all positions at once.

Diatonic Chords in A Phrygian

Building triads on each degree of A Phrygian:

DegreeChordQualityNotes
iAmMinorA – C – E
♭IIB♭MajorB♭ – D – F
♭IIICMajorC – E – G
ivDmMinorD – F – A
EdimDiminishedE – G – B♭
♭VIFMajorF – A – C
♭viiGmMinorG – B♭ – D

The ♭II chord (B♭ major) is the signature Phrygian sound — a major chord just one semitone above the root. The B♭–Am cadence defines flamenco and metal writing in this key.

For a thorough explanation of how diatonic chords are constructed, see Diatonic Chords: A Beginner’s Guide.

Seventh Chords

DegreeChordQualityNotes
i7Am7Minor 7thA – C – E – G
♭IImaj7B♭maj7Major 7thB♭ – D – F – A
♭III7C7Dominant 7thC – E – G – B♭
iv7Dm7Minor 7thD – F – A – C
vø7Em7♭5Half-diminishedE – G – B♭ – D
♭VImaj7Fmaj7Major 7thF – A – C – E
♭vii7Gm7Minor 7thG – B♭ – D – F

For more on seventh chords, see Seventh Chords: The Complete Guide.

Common Chord Progressions in A Phrygian

ProgressionChordsUsed in
i – ♭II – iAm – B♭ – AmFlamenco cadence, metal riffs
i – ♭II – ♭III – ♭IIAm – B♭ – C – B♭Flamenco progressions
i – ♭VII – ♭VI – ♭IIAm – Gm – F – B♭Film scores, prog rock
i – ♭II – ♭VII – iAm – B♭ – Gm – AmDark modal grooves
i – iv – ♭II – iAm – Dm – B♭ – AmMetal, gothic rock
i – ♭VI – ♭II – iAm – F – B♭ – AmCinematic, ambient

For more on progressions, see Chord Progressions Every Musician Should Know.

Songs and Styles Using A Phrygian

A Phrygian is found across many genres:

  • Flamenco guitar — A Phrygian is one of the most common keys in the flamenco tradition, second only to E Phrygian
  • Metal — the open A string on guitar makes Phrygian riffs in A heavy and resonant
  • Film scoring — A Phrygian provides dark, suspenseful underscore
  • Middle Eastern–influenced music — the ♭2 interval echoes traditional maqam scales
  • Progressive rock — bands like Tool and Opeth use A Phrygian passages for atmosphere

Parent Major Scale and Modal Relationships

A Phrygian is the 3rd mode of F major — it contains the same notes but treats A as the tonal centre.

Comparison with A Natural Minor

A Phrygian is closely related to A natural minor (A – B – C – D – E – F – G). The only difference is the 2nd degree:

Scale1234567
A natural minorABCDEFG
A PhrygianAB♭CDEFG

That single lowered note — B♭ instead of B — is what transforms the sound from standard minor to the dark, exotic Phrygian character. If you already know A natural minor, flatten the 2nd and you have A Phrygian.

Phrygian Dominant

Raising the 3rd degree of A Phrygian from C to C♯ produces A Phrygian Dominant (A – B♭ – C♯ – D – E – F – G). This variant keeps the ♭2 but adds a major 3rd, creating an even more intensely Spanish and Middle Eastern sound. It is the 5th mode of D harmonic minor and the scale of choice for many traditional Andalusian and klezmer melodies.

A Phrygian belongs to the F major family of modes. All seven share the same notes — F, G, A, B♭, C, D, E:

Scale / ModeStarting NoteCharacter
F major (Ionian)FBright, resolved
G DorianGMinor with a lifted feel
A PhrygianADark, Spanish flavour (you are here)
B♭ LydianB♭Dreamy, floating major
C MixolydianCBluesy, relaxed major
D natural minor (Aeolian)DDark, reflective
E LocrianEUnstable, diminished

Practice Tips

Drone on A. Play a sustained A note or loop an Am chord and improvise using the notes of F major. The drone forces your ear to hear A as the tonal centre.

Emphasise the ♭2. B♭ is the soul of A Phrygian. Land on it frequently in your melodies and resolve it back to A to bring out the modal colour.

Practise the ♭II–i cadence. Alternate between B♭ major and Am chords. On guitar, use a B♭ barre chord at the 1st fret resolving to open Am. On piano, play B♭–D–F resolving to A–C–E.

Compare with A natural minor. Play A natural minor ascending, then A Phrygian immediately after. The single note change (B becoming B♭) will train your ear to hear the Phrygian difference.

Explore flamenco patterns. The Am–B♭–Am progression is a staple of Andalusian music. Try strumming it with a rasgueado technique to feel the rhythmic pulse of the Phrygian cadence.

Use a metronome. Start at 60–80 BPM and play the scale ascending and descending. Focus on the half steps at A–B♭ and E–F.

Try It Yourself

Open the Interactive Chord Finder, select A as the root and Phrygian as the scale. You will see every note highlighted on the piano keyboard or guitar fretboard, the step pattern visualised as intervals, and all diatonic chords laid out in a table — ready to play and explore.

For the complete list of scales in every key, see Scales for Piano and Guitar: The Complete Reference Guide.