What is the most common chord progression?

The I-V-vi-IV progression is arguably the most common in pop music, used in songs like "Let It Be," "No Woman No Cry," and countless others. In the key of C, this is C-G-Am-F. Other popular progressions include the ii-V-I in jazz and the 12-bar blues.

What do Roman numerals mean in chord progressions?

Roman numerals represent chords built on each scale degree. Uppercase (I, IV, V) indicates major chords, lowercase (ii, iii, vi) indicates minor chords. This system lets musicians discuss progressions in any key—I-V-vi-IV is C-G-Am-F in C major, but G-D-Em-C in G major.

Chord Progression Explorer

Chord progressions are the harmonic backbone of music. Explore classic progressions from pop, jazz, blues, and more. Click any key to hear the progression in that key.

Genre

Progression

Key

C - G - Am - F

The most popular chord progression in modern pop music. Uplifting and memorable.

Famous songs: Let It Be - The Beatles, No Woman No Cry - Bob Marley

What is a Chord Progression?

A chord progression is a sequence of chords played in succession. It provides the harmonic foundation that supports melody and creates emotional movement in music.

Roman Numeral Notation

Uppercase numerals (I, IV, V) indicate major chords. Lowercase (ii, vi) indicate minor. This system lets you understand progressions in any key.

Genre Characteristics

Different genres favor different progressions. Pop uses I-V-vi-IV, jazz loves ii-V-I, and blues relies on the 12-bar form. Learning these patterns unlocks each genre.

Progression Reference

Common chord progressions across genres. Click any progression to explore it above.

Pop/Rock

Progression	In C	Description
I-V-vi-IV	C - G - Am - F	The most popular chord progression in modern pop music. Uplifting and memorable.
I-IV-V	C - F - G - C	Classic rock and roll progression. Simple and powerful.
vi-IV-I-V	Am - F - C - G	Starts on the minor chord for an emotional, dramatic feel.
I-vi-IV-V	C - Am - F - G	The classic 50s doo-wop progression. Nostalgic and warm.

Jazz

Progression	In C	Description
ii-V-I	Dm7 - G7 - Cmaj7	The fundamental jazz progression. Smooth resolution from tension to rest.
I-vi-ii-V	Cmaj7 - Am7 - Dm7 - G7	Classic jazz turnaround, also known as "rhythm changes" bridge.
iii-vi-ii-V	Em7 - Am7 - Dm7 - G7	Extended turnaround with circle of fifths motion.
I-IV-ii-V	Cmaj7 - Fmaj7 - Dm7 - G7	Smooth jazz progression with plagal motion.

Blues

Progression	In C	Description
12-Bar Blues	C - C - C - C - F - F - C - C - G - F - C - G7	The foundation of blues and early rock music. 12 bars of soul.
8-Bar Blues	C - G - F - F - C - G - C - G7	Shorter blues form, more compact and driving.
Quick Change Blues	C - F - C - C - F - F - C - C - G - F - C - G7	12-bar blues with early move to IV chord in bar 2.

Classical

Progression	In C	Description
Pachelbel Canon	C - G - Am - Em - F - C - F - G	The famous Canon in D progression. Elegant descending bass line.
I-IV-V-I	C - F - G - C	Perfect authentic cadence. The most conclusive ending in Western music.
vi-ii-V-I	Am - Dm - G - C	Circle of fifths progression. Strong harmonic motion.
Romanesca	D# - A# - Cm - G - D# - A# - Cm - G	Renaissance and Baroque ground bass pattern.

EDM

Progression	In C	Description
vi-IV-I-V	Am - F - C - G	Emotional EDM progression. Creates euphoric build-ups.
I-V-vi-IV	C - G - Am - F	Festival anthem progression. Uplifting and anthemic.
i-VII-IV	Cm - A# - F - Cm	Dark minor progression common in trance and techno.
i-VI-III-VII	Cm - G# - D# - A#	Minor key progression with borrowed chords. Emotional and driving.

Country

Progression	In C	Description
I-IV-V-I	C - F - G - C	Classic country and folk progression. Timeless and simple.
I-V-vi-IV	C - G - Am - F	Modern country pop progression. Radio-friendly and emotional.
I-IV-I-V	C - F - C - G	Alternating tonic progression. Classic honky-tonk feel.

R&B/Soul

Progression	In C	Description
ii-V-I-vi	Dm7 - G7 - Cmaj7 - Am7	Smooth R&B turnaround. Sophisticated and soulful.
I-vi-ii-V	Cmaj7 - Am7 - Dm7 - G7	Classic soul progression. Warm and inviting.
vi-V-IV-V	Am7 - G7 - Fmaj7 - G7	Modern R&B progression. Smooth and contemporary.
I-iii-IV-V	Cmaj7 - Em7 - Fmaj7 - G7	Ascending diatonic progression. Builds beautifully.

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