Super Simple Chords

Chord progression

The I–I7–IV–ii chord progression

C – C7 – F – Dm in C. 18 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:

CIC7I7FIVDmii

In every key

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

KeyII7IVii
CCC7FDm
DbDbDb7GbEbm
DDD7GEm
EbEbEb7AbFm
EEE7AF#m
FFF7BbGm
F#F#F#7BG#m
GGG7CAm
AbAbAb7DbBbm
AAA7DBm
BbBbBb7EbCm
BBB7EC#m

Songs that go round it

18 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–I7–IV–ii

What is the I–I7–IV–ii chord progression?

A loop of 4 chords: C – C7 – F – Dm 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–I7–IV–ii progression?

18 songs in the library repeat it, including Alexander’s Ragtime Band, You’ll Be Back, All Alone, It’s A Small World and Of Thee I Sing.

How do I play I–I7–IV–ii on piano?

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