I–ii–IV–V in B♭ Major

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

Chord Breakdown

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

Harmonic Analysis

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

This progression creates a sense of escalating energy by stepping from the tonic through the supertonic and subdominant to the dominant. It provides a satisfying, gradual harmonic build popular in verse sections.

Song Examples

Take Me Home, Country Roads — John Denver
Crocodile Rock — Elton John

Chord Details

B♭ Cm 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