I–II–IV–iii in B Major

Pattern: I – II – IV – iii Chords: B – C♯ – E – D♯m

Chord Breakdown

Numeral	Chord	Type	Function
I	B (details)	major	Tonic
II	C♯ (details)	major	Supertonic
IV	E (details)	major	Subdominant
iii	D♯m (details)	minor	Mediant

Harmonic Analysis

This progression moves through B (Tonic) → C♯ (Supertonic) → E (Subdominant) → D♯m (Mediant).

A progression that introduces a major II chord borrowed from the Lydian mode, giving the harmony a bright, lifted quality. The resolution to IV and then iii provides an unexpected but satisfying melodic path.

Song Examples

Inner Urge — Joe Henderson
Maiden Voyage — Herbie Hancock

Chord Details

B C♯ E D♯m

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