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Guitar scale · harmonic & melodic

C Phrygian b4 Scale

Mode 3 of Harmonic Major: Phrygian with a lowered 4th.

Notes CDbEbFbGAbBb
Formula 1 ♭2 ♭3 ♭4 5 ♭6 ♭7
Steps H W H W+H H W W
Mood Dark, Tense, Unusual
Heard in Modal Improvisation

Interactive scale diagram

C Phrygian b4 Scale · Standard tuning

STR OP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 E A D G B E

Tap any note to hear it.

C Phrygian b4 Scale tab: all 5 positions

Each tab climbs from the low E string to the high e string. Play it up, then back down.

Position 1 · E shape frets 8–12
e|-------------------------------------8-9-11-12-|
B|--------------------------------9-11-----------|
G|-------------------------8-9-12----------------|
D|-----------------8-10-11-----------------------|
A|-----------10-11-------------------------------|
E|-8-9-11-12-------------------------------------|
Position 2 · D shape frets 10–14
e|-------------------------------------------11-12-|
B|----------------------------------11-13-14-------|
G|----------------------------12-13----------------|
D|----------------10-11-13-14----------------------|
A|-------10-11-13----------------------------------|
E|-11-12-------------------------------------------|
Position 3 · C shape frets 12–16
e|-------------------------------------------12-15-16-|
B|----------------------------------13-14-16----------|
G|-------------------------12-13-15-------------------|
D|-------------------13-14----------------------------|
A|----------13-15-16----------------------------------|
E|-12-15-16-------------------------------------------|
Position 4 · A shape frets 15–19
e|-------------------------------------------15-16-18-|
B|-------------------------------------16-17----------|
G|----------------------------15-17-18----------------|
D|----------------------17-18-------------------------|
A|----------15-16-18-19-------------------------------|
E|-15-16-18-------------------------------------------|
Position 5 · G shape frets 17–21
e|-------------------------------------------18-20-21-|
B|-------------------------------------20-21----------|
G|-------------------------17-18-20-21----------------|
D|----------------17-18-20----------------------------|
A|----------18-19-------------------------------------|
E|-18-20-21-------------------------------------------|

How to play C Phrygian b4 on guitar

Find the root first: C is at fret 8 on the low E string and fret 3 on the A string. The blue notes on the diagram are every C on the neck; the gold ones are the rest of the scale's home chord (♭3, 5, ♭7), the safest notes to land on at the end of a phrase.

Learn it one box at a time. Position 1, the E shape, sits at frets 8–12. Once it's under your fingers, move to position 2 (the D shape) and play the notes the two boxes share, then keep going up the neck. After all five, the scale joins up into one pattern across the whole fretboard.

Degrees

DegreeNote
1 C
♭2 Db
♭3 Eb
♭4 Fb
5 G
♭6 Ab
♭7 Bb

Chords in C Phrygian b4

Stack every other note of the scale and you get these seven chords. They are the chords that sound "at home" in C Phrygian b4; tap one to see its shapes.

Degree Chord 7th chord Function
i Cm Cm7 Tonic
♭ii Dbm Dbm(maj7) Supertonic
♭III Eb Eb7 Mediant
♭IV+ Fbaug Fbmaj7#5 Subdominant
v° Gdim Gdim7 Dominant
♭VI Ab Abmaj7 Submediant
♭vii° Bbdim Bbm7b5 Leading tone / subtonic

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Questions

What notes are in the C Phrygian b4 Scale?
The C Phrygian b4 Scale has 7 notes: C, Db, Eb, Fb, G, Ab, Bb.
What chords are in the C Phrygian b4 Scale?
The chords of C Phrygian b4 are Cm (i), Dbm (♭ii), Eb (♭III), Fbaug (♭IV+), Gdim (v°), Ab (♭VI), Bbdim (♭vii°).
What is the formula of the phrygian b4 scale?
1 ♭2 ♭3 ♭4 5 ♭6 ♭7, which is the step pattern H W H W+H H W W (W = whole step, H = half step).
Where do I play C Phrygian b4 on the guitar?
The root C is at fret 8 on the low E string and fret 3 on the A string. Position 1 (the E shape) covers frets 8–12, and four more positions connect it up the neck.

Phrygian b4 Scale in every key

More scales in C