I - V - vi - IV
C - G - Am - F
A common pop and singer-songwriter loop. It is a strong starting point when you want a quick major-key reference.
Progressions
Progressions make more sense when you can see the likely key, the chords that belong to it, and the scale options that keep the same center of gravity. Use this page to move between those pieces instead of treating the chords in isolation.
How to use it
Common movement
I - V - vi - IV
C - G - Am - F
A common pop and singer-songwriter loop. It is a strong starting point when you want a quick major-key reference.
ii - V - I
Dm - G - C
The classic ii-V-I cadence. It is useful when you want to hear how a progression points back into the tonic.
i - VI - III - VII
Am - F - C - G
A familiar minor-centered loop that still leans on shared relative-major notes and shapes.
Follow the harmony
C scale hub
Useful when your progression centers on C major or A minor territory.
G scale hub
A practical root for open-chord progressions and major pentatonic melodies.
A scale hub
A common minor center for folk, rock, and singer-songwriter progressions.
E chord hub
Compare the chord shapes that often show up in open-position progressions.