Super Simple Chords

Chord progression

The I–iii–IV–V chord progression

C – Em – F – G in C. 35 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:

CIEmiiiFIVGV

In every key

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

KeyIiiiIVV
CCEmFG
DbDbFmGbAb
DDF#mGA
EbEbGmAbBb
EEG#mAB
FFAmBbC
F#F#A#mBC#
GGBmCD
AbAbCmDbEb
AAC#mDE
BbBbDmEbF
BBD#mEF#

Songs that go round it

35 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.

Questions about I–iii–IV–V

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

A loop of 4 chords: C – Em – F – G 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–iii–IV–V progression?

35 songs in the library repeat it, including I Don't Like Mondays, Stuck On You, Christmas (Baby Please Come Home), Forever In Love and Gonna Get Along Without Ya Now.

How do I play I–iii–IV–V on piano?

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