What are the diatonic chords of C# Ultralocrian?

The diatonic chords of C# Ultralocrian are built by harmonizing each degree of the scale in thirds. The scale degrees are 1 ♭2 ♭3 4d ♭5 ♭6 7d and the intervals are H-W-H-W-W-H-3H. The triads are: C#dim, Dm, Edim, Faug, Gm, AM, BbM.

What is scale harmonization?

Scale harmonization is the process of building chords from each degree of a scale by stacking thirds. Each note of the scale becomes the root of a chord, producing a set of diatonic chords (triads and seventh chords) that naturally belong to that key.

What is Practice Mode in the Scale Harmonizer?

Practice Mode is an interactive study tool that cycles through all diatonic chords with a synchronized fretboard visualization (switch between scale and arpeggio view), adjustable tempo (40–240 BPM), and audio playback. It includes ii-V-I progressions and secondary dominant exercises — the fretboard automatically shows the contextually correct scale for each chord (e.g., Dorian for the ii, Mixolydian for the V7).

C# ultralocrian chords

All ukulele chords for the C# ultralocrian scale

Show scale diagram ↓

Chord Voicings

Harmony

Originalii–V–ISec. Dom.

Display

FingerNoteDegree

Fretboard

ScaleArpeggio

C♯ ultralocrian scale diatonic chords

IC♯ dim

IID minor

IIIE dim

IVF aug

VG minor

VIA major

VIIB♭ major

C♯ ultralocrian scale seventh chords

IC♯ dim7

IID mmaj7

IIIE m7♭5

IVF major seventh flat sixth

F - A - C♯ - E

VG m7

VIA 7

VIIB♭ maj7

scale

Ukulele fretboard diagram

C# ultralocrian scale — ukulele chords and intervals

Harmonizing the C# ultralocrian scale yields the darkest possible chord family, with virtually every chord containing a dissonant interval. The chords of C# ultralocrian are C# diminished, D minor, E diminished, F augmented, G minor, A major, Bb major. These chords are used in avant-garde jazz and dark ambient music for extreme harmonic tension. The chord family resists any sense of tonal center, making it effective for disturbing, unsettled musical passages. Commonly used in Avant-Garde, Dark Ambient, Experimental Jazz. Notable players include John Zorn, Derek Bailey.

The C# ultralocrian scale has the following degrees: 1 ♭2 ♭3 4d ♭5 ♭6 7d.

Intervals: H-W-H-W-W-H-3H.

Diatonic chords: C# diminished, D minor, E diminished, F augmented, G minor, A major, Bb major.

Degrees	Chord
I	C# diminished
ii	D minor
iii	E diminished
IV	F augmented
V	G minor
vi	A major
vii°	Bb major

Degree-by-Degree Analysis

The I chord (C# diminished) is the tonic — the gravitational center of the key. The ii chord (D minor) is the minor subdominant, commonly used to approach the V chord. The iii chord (E diminished) functions as a substitute for the I or vi. The IV chord (F augmented) is the subdominant — it adds motion and moderate tension. The V chord (G minor) is the dominant — it creates the strongest tension that wants to resolve to the I. The vi chord (A major) is the relative minor — it brings emotional color and depth. The vii° chord (Bb major) is the diminished — the most tense, rarely used alone, usually leading to the I.

This page focuses on the harmonic content — the chords built from each degree of the C# ultralocrian scale. For fretboard patterns and fingering guides, see the scale page.

Use the interactive harmonizer above to explore triads, seventh chords, and chord voicings for composing with the C# ultralocrian scale on ukulele.

ultralocrian is the 7th mode of the Harmonic Minor scale. View C# Harmonic minor scale

Related Scales

How to Use This Scale

Use over dim7 chords in avant-garde contexts. More of a compositional tool than an improvisational one.