I–ii–iii–IV–V in B♭ Major

Pattern: I – ii – iii – IV – V Chords: B♭ – Cm – Dm – E♭ – F

Chord Breakdown

Numeral	Chord	Type	Function
I	B♭ (details)	major	Tonic
ii	Cm (details)	minor	Supertonic
iii	Dm (details)	minor	Mediant
IV	E♭ (details)	major	Subdominant
V	F (details)	major	Dominant

Harmonic Analysis

This progression moves through B♭ (Tonic) → Cm (Supertonic) → Dm (Mediant) → E♭ (Subdominant) → F (Dominant).

A stepwise ascending motion through the first five diatonic chords. The rising bass line creates a strong sense of building energy and forward momentum, often used in intros and verses.

Song Examples

Joy Spring — Clifford Brown
Solar — Miles Davis

Chord Details

B♭ Cm Dm E♭ F

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