vii°–I in B Major

Pattern: vii° – I Chords: A♯dim – B

Chord Breakdown

Numeral	Chord	Type	Function
vii°	A♯dim (details)	diminished	Subtonic
I	B (details)	major	Tonic

Harmonic Analysis

This progression moves through A♯dim (Subtonic) → B (Tonic).

The vii°–I progression features the diminished triad built on the leading tone resolving directly to the tonic. The diminished chord's inherent instability — caused by its tritone between root and flat fifth — creates powerful tension that demands resolution. It functions similarly to V–I but with even more urgency, and is a staple of classical part-writing and jazz voice leading.

Song Examples

Prelude in C Major — J.S. Bach
Killing Me Softly — Roberta Flack
Moonlight Sonata — Beethoven

Chord Details

A♯dim B

More Progressions in B 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

V–I viidim7–I viihd7–I