viiø7–I in D♭ Major

Pattern: viiø7 – I Chords: Cø7 – D♭

Chord Breakdown

Numeral	Chord	Type	Function
viiø7	Cø7 (details)	half diminished	Subtonic
I	D♭ (details)	major	Tonic

Harmonic Analysis

This progression moves through Cø7 (Subtonic) → D♭ (Tonic).

The viiø7–I progression uses the half-diminished seventh chord on the leading tone as a substitute for the dominant, resolving to the major tonic. The added minor seventh softens the diminished triad's harshness while preserving the strong upward resolution of the leading tone. This voicing appears in jazz as a rootless V9 chord and in classical music as a passing harmony.

Song Examples

Prelude in C Major — J.S. Bach
Giant Steps — John Coltrane
Stella by Starlight — jazz standard

Chord Details

Cø7 D♭

More Progressions in D♭ Major

I–IV–V–I I–V–vi–IV I–vi–IV–V ii–V–I I–IV–V I–♭VII–IV vi–IV–I–V I–V–vi–iii–IV–I–IV–V I–IV I–V IV–V IV–I

Related Progressions

viidim–I viidim7–I V7–I