Super Simple Chords

Chord progression

The I–V7–I–I7 chord progression

C – G7 – C – C7 in C. 37 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:

CIG7V7CIC7I7

In every key

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

KeyIV7II7
CCG7CC7
DbDbAb7DbDb7
DDA7DD7
EbEbBb7EbEb7
EEB7EE7
FFC7FF7
F#F#C#7F#F#7
GGD7GG7
AbAbEb7AbAb7
AAE7AA7
BbBbF7BbBb7
BBF#7BB7

Songs that go round it

37 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–V7–I–I7

What is the I–V7–I–I7 chord progression?

A loop of 4 chords: C – G7 – C – C7 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–V7–I–I7 progression?

37 songs in the library repeat it, including It's A Small World, Ob-La-Di, Ob-La-Da, The Old Rugged Cross, Blue Monk and Elvira.

How do I play I–V7–I–I7 on piano?

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