Super Simple Chords

Chord progression

The I–I7–IV7–I chord progression

C – C7 – F7 – C in C. 17 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:

CIC7I7F7IV7CI

In every key

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

KeyII7IV7I
CCC7F7C
DbDbDb7Gb7Db
DDD7G7D
EbEbEb7Ab7Eb
EEE7A7E
FFF7Bb7F
F#F#F#7B7F#
GGG7C7G
AbAbAb7Db7Ab
AAA7D7A
BbBbBb7Eb7Bb
BBB7E7B

Songs that go round it

17 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–IV7–I

What is the I–I7–IV7–I chord progression?

A loop of 4 chords: C – C7 – F7 – C 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–IV7–I progression?

17 songs in the library repeat it, including Everyday I Have The Blues, At My Front Door, At My Front Door, At The Hop and Blue Monday.

How do I play I–I7–IV7–I on piano?

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