Super Simple Chords

Chord progression

The I7–IV7–I7–IV7 chord progression

C7 – F7 – C7 – F7 in C. 43 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:

C7I7F7IV7C7I7F7IV7

In every key

Find your song's key on the left: its chords are the row. Tap a key to play the loop in it. Each column keeps its colour, whatever the key.

KeyI7IV7I7IV7
C7F7C7F7
Db7Gb7Db7Gb7
D7G7D7G7
Eb7Ab7Eb7Ab7
E7A7E7A7
F7Bb7F7Bb7
F#7B7F#7B7
G7C7G7C7
Ab7Db7Ab7Db7
A7D7A7D7
Bb7Eb7Bb7Eb7
B7E7B7E7

Songs that go round it

43 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.

Questions about I7–IV7–I7–IV7

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

A loop of 4 chords: C7 – F7 – C7 – F7 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 I7–IV7–I7–IV7 progression?

43 songs in the library repeat it, including A Little Less Conversation, Got To Get You Into My Life, Great Is The Lord, Baby, I Love You and Now's The Time.

How do I play I7–IV7–I7–IV7 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.