
Scales › ultraphrygian
ultraphrygian scale
diminished Phrygian bb7
7 notesguide tones (3rd & 7th — the heart of the sound) avoid (strong clash)
C · Db · Eb · Fb · G · Ab · Bbb
ultraphrygian on the guitar: the fretboard diagram
Here is the ultraphrygian scale laid out across the whole neck, from fret 0 to fret 15. The guide tones (3rd and 7th) are highlighted — they're what makes the scale's color sing. Use the key selector above to shift the shape along the neck and find the positions in your key.
What color?
Phrygian with b11 and bb7: a very dark, chromatic mode, almost diminished, drawn from the double harmonic. An exotic, closed color, to reserve for moments when you seek extreme Eastern tension.
Origin & history
The third mode of the double harmonic. One of the darkest theoretical modes, mostly material for exploration.
Which chords to play it on?
Outside the functional consensus: this is an exploration color. Lay it over a vamp or a held chord to tint your improvisation with an unexpected flavor, rather than inside a cadence.
Sibling modes
The ultraphrygian scale is one of the modes of the double harmonic scale : it shares exactly the same notes as the modes below, but built on a different degree of the parent scale (double harmonic major (Byzantine)).
Try it in a real chart
Paste a chord chart into the tool: Pentania tells you, chord by chord, when this scale fits — and what other colors are open to you. Open the tool →