Super Simple Chords

The happy mood

The I–V–vi–IV chord progression

C – G – Am – F in C. 266 songs in the library go round it. Hear it in any style and key, and see it in all twelve keys.

Tuning the piano…
Style
Key

Want to mix it with other hands?

The loop

4 chords, round and round, in C. Each chord on the keys:

CIGVAmviFIV

In every key

Find your song's key on the left: its chords are the row. Each column keeps its colour, whatever the key.

KeyIVviIV
CCGAmF
DbDbAbBbmGb
DDABmG
EbEbBbCmAb
EEBC#mA
FFCDmBb
F#F#C#D#mB
GGDEmC
AbAbEbFmDb
AAEF#mD
BbBbFGmEb
BBF#G#mE

Songs that go round it

266 songs, best known first. Rest the mouse on one to hear it.

All of them

Left hands these songs use

The patterns most often played under this loop.

The same loop, starting elsewhere

The same chords in the same order, begun on another chord: songs often move between them.

FIVCIGVAmvi

See You Again · The Little Things · 10,000 Reasons (Bless The Lord) (arr. Phillip Keveren)

In the Playground this is the Happy mood. Try it with the pop piano stride piano style.

Questions about I–V–vi–IV

What is the I–V–vi–IV chord progression?

A loop of 4 chords: C – G – Am – F in C. The numerals say each chord's place in the key, so the same loop can be played in any key.

What songs use the I–V–vi–IV progression?

266 songs in the library repeat it, including Don’t Stop Believin’, Love Story, No One, All Too Well and We Fall Down.

How do I play I–V–vi–IV on piano?

Hold each chord with the right hand while the left hand plays its root, then swap in a pattern: engine 8ths is the left hand these songs use most. The player above plays it in any style and key.