Chord Colors

B♭ Phrygian b4 scale

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About the B flat Phrygian b4 scale

B flat Phrygian b4 is used for metal, film scoring and tense modal writing. It's a phrygian scale with its fourth lowered, extra dark.

Positions

Playable shapes for this scale up the neck. Tap any note to hear it.

CAGED

Five shapes, each anchored to a chord form you already know, the pop and rock default that ties your scales to your chords. The outlined notes are that chord, so you can see the C, A, G, E, and D shapes inside the scale.

A shapeopen
G shapefr 3
E shapefr 5
D shapefr 7
C shapefr 10
3NPS

3NPS stands for 3 notes per string. It lays the scale out in seven even shapes for rock and metal lead, and favors speed because the picking pattern stays consistent across every string.

Shape 1open
Shape 2fr 2
Shape 3fr 4
Shape 4fr 5
Shape 5fr 7
Shape 6fr 9
Shape 7fr 10
7-position system

7 four-fret boxes, one per scale degree, each a single hand position with almost no shifting. The jazz and classical way, from William Leavitt's Berklee method.

Position 1fr 1
Position 2fr 2
Position 3fr 4
Position 4fr 6
Position 5fr 7
Position 6fr 9
Position 7fr 10

Chords in the key of B flat Phrygian b4

Expand a chord to see how to play it.

i B flat minor
6fr 6fr 8fr

(1st inversion)

ii C flat minor
7fr 9fr 10fr

(1st inversion)

III D flat
4fr 6fr 9fr

(1st inversion)

IV+ D augmented
3fr 7fr 10fr

(1st inversion)

F diminished
6fr 8fr 11fr

(1st inversion)

VI G flat
4fr 6fr 9fr

(1st inversion)

vii° A flat diminished
6fr 9fr 11fr

(1st inversion)

Seventh chords in B flat Phrygian b4

The four-note version of each chord, richer and jazzier.

i B flat minor seven
6fr 8fr

ii C flat minor major seven
7fr 9fr

III D flat seven
4fr 6fr 9fr

IV+ D major seven sharp five
2fr 5fr 9fr

F diminished seven
7fr 12fr

VI G flat major seven
4fr 6fr 9fr

vii° A flat minor seven flat five
6fr 11fr

Progressions in B flat Phrygian b4

Tap any chord to hear it, or play the whole progression.

I I+
I ♭III
i III
I ♭VI
I ♭VI+

Notes and intervals

1 B flat Root
2 C flat Minor 2nd
3 D flat Minor 3rd
4 D Diminished 4th
5 F Perfect 5th
6 G flat Minor 6th
7 A flat Minor 7th

Shapes

Chromatic

C C♯ D♭ D D♯ E♭ E F F♯ G♭ G G♯ A♭ A A♯ B♭ B

Circle of Fifths

C G D A E B F♯ G♭ C♯ D♭ G♯ A♭ D♯ E♭ A♯ B♭ F

Related scales

Phrygian b4 in other keys

Modes

The same notes, starting on a different note.

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