To play the C# Phrygian scale scale, you need the notes C#, D, E, F#, G#, A, B. Its formula is H–W–W–W–H–W–W, and it has 7 notes in total. Below you will find its formula and intervals, patterns for guitar, piano and ukulele, and how to use it in real music.
What notes are in the C# Phrygian scale?
The C# Phrygian scale contains 7 notes: C#, D, E, F#, G#, A, B. Those notes are fixed — play a different set and you are playing a different scale. The scale starts on C# and returns to C# an octave higher, passing through every note in the list above in order.
| Degree | Note | Semitones from root |
|---|---|---|
| 1 | C# | 0 |
| 2 | D | 1 |
| 3 | E | 3 |
| 4 | F# | 5 |
| 5 | G# | 7 |
| 6 | A | 8 |
| 7 | B | 10 |
The formula of the C# Phrygian scale is H–W–W–W–H–W–W, where W is a whole step (two semitones) and H is a half step (one semitone). Follow that pattern from C# and you get exactly the notes above, in order. The intervals from the root are 0, 1, 3, 5, 7, 8, 10 semitones. Once you know the formula, you can build the C# Phrygian scale from any root without looking it up — the pattern is the scale.
The C# Phrygian scale sounds dark, tense and Spanish-sounding — the flattened 2nd gives it its exotic edge. The black keys in the scale are C#, F#, G#, which is worth knowing on piano, where the hand shape depends on where the black keys fall.
How to play it
On the guitar, anchor the C# Phrygian scale on the root C#, which sits at fret 9 on the low E string. Play the scale across the strings from that root, one note per fret position where the pattern allows, and learn where the other C# notes sit — on the A string, the D string and higher up the neck — so you can move the pattern to any position. The pattern is the same shape in every key; only the starting fret changes, which is why learning the C# Phrygian scale as a shape plus a root note is more useful than learning it as a list of frets.
On the low E string of the guitar, the notes of the C# Phrygian scale fall at C# at fret 9, D at fret 10, E at fret 0, F# at fret 2, G# at fret 4, A at fret 5, B at fret 7. On the C string of the ukulele they fall at C# at fret 1, D at fret 2, E at fret 4, F# at fret 6, G# at fret 8, A at fret 9, B at fret 11. Those fret numbers are worth learning, because they let you find any note of the C# Phrygian scale on a single string without working out the pattern: pick a string, count to the fret, and the note is there. Practise playing the scale up one string only, from the low root to the high root, and then play it across the strings as a pattern — the two ways of playing it teach different things, and both are useful.
On the piano, play the C# Phrygian scale with the notes C#, D, E, F#, G#, A, B in order, ascending and then descending. The black keys are C#, F#, G#, so let your longer fingers take those keys and use the thumb to turn under on the white keys. Practise hands separately first, then together, at a slow tempo, and say each note name as you play it — that is what turns the C# Phrygian scale from a finger exercise into knowledge you can use.
On the ukulele, anchor the C# Phrygian scale on the root C#, which sits at fret 1 on the C string. Play the scale across the four strings from that anchor, keeping the pattern close to the root position first, then try the same notes an octave higher. Use the Guitar Scale Finder, the Piano Scale Finder and the Ukulele Scale Finder to see the C# Phrygian scale on each instrument while you practise, and the Scale Finder to compare it with other scales.
How to use the Phrygian scale
The C# Phrygian scale is the mode of flamenco and metal, used over minor chords for a dark, dramatic colour. Its home is the key of A major, and the chords built from its notes are C#m, D, E, F#m, G#dim, A, Bm. Those chords are the ones the scale fits over most naturally: play the scale over any of them and every note belongs, because the chords are made from the scale itself. Start by soloing over the tonic chord — the chord built on C# — and then try the scale over the other chords in the list, listening to how each chord changes which notes of the scale sound settled and which sound tense.
Its closest relative is the natural minor, which it differs from by the flattened 2nd. That comparison is the fastest way to hear what makes the C# Phrygian scale different: play both scales back to back from the same root and listen for the note or notes that change. In practice, use the C# Phrygian scale where its character fits the music — phrygian colour over the chords listed above — and switch to its relatives when the mood needs to change. The Chord to Key Finder will tell you which key a set of chords belongs to, which is the practical way to choose between the C# Phrygian scale and its relatives in a real song.
Related scales
The scales most closely related to the C# Phrygian scale are C# Major scale, C# Natural minor scale, C# Harmonic minor scale, C Phrygian scale, D Phrygian scale. The first group shares the root C# and changes the type, so you can hear how the same starting note produces a different colour. The second group keeps the phrygian type and moves it to a different root, so you can hear the same colour at a different pitch. The parallel scale — C# minor scale — starts on the same root C# but is the opposite mode, and comparing the two is the classic way to learn what major and minor really mean. Work through the related scales one at a time, playing each from the same root, and the differences between them will become audible rather than theoretical.
Frequently asked questions
Which chords fit over the C# Phrygian scale?
The chords built from the scale itself fit best: C#m, D, E, F#m, G#dim, A, Bm. Because those chords use only notes from the scale, every note of the C# Phrygian scale belongs over them. Start with the tonic chord built on C# and work through the list.
Which key does the C# Phrygian scale belong to?
Its home is the key of A major. That key uses the same notes as the scale, so the scale and the key fit together exactly. The C# Phrygian scale is the scale you play when you are soloing or writing in that key.
How is the C# Phrygian scale different from the C# major scale?
It differs by the notes that are not shared. Compare the two scales note by note from the same root C# and the differing notes are the ones that give the phrygian scale its character. The related-scales section above links both scales so you can compare them directly.
Is the C# Phrygian scale hard to learn?
It has 7 notes, which is a manageable size, and the formula H–W–W–W–H–W–W gives you a pattern to follow rather than a list to memorise. Learn it on one instrument first — guitar, piano or ukulele — play it up and down slowly, and then try it over the tonic chord built on C#.
What notes are in the C# Phrygian scale?
The C# Phrygian scale contains C#, D, E, F#, G#, A, B. Those 7 notes, in that order, are the whole scale — start on C#, play through the list, and return to C# an octave higher.