The I–IV–V Progression
Three chords, one key, and an entire genre's worth of songs. The I-IV-V is the first progression most musicians ever learn — for good reason.
What is the I-IV-V progression?
Using Roman numeral analysis, the I-IV-V progression is simply the chords built on the 1st, 4th, and 5th degrees of a major key. In C major that's C (I), F (IV), and G (V) — three chords that, between them, cover all three chord functions: tonic, subdominant, and dominant.
Why it works so well
I-IV-V takes a listener on a complete harmonic journey in just three chords: start at home (I), move away with a sense of motion (IV), build tension (V), then resolve straight back to I. That simple arc — leave and return — is the backbone of an enormous share of rock, blues, folk, and country music.
Common questions
What is the I-IV-V progression?
A three-chord progression on the 1st, 4th, and 5th degrees of a major key — C, F, and G in C major.
What genres use the I-IV-V progression?
Rock and roll, blues, folk, country, and countless pop songs — often the first progression guitarists and pianists learn.
Why does I-IV-V sound so complete?
It touches all three chord functions — tonic, subdominant, and dominant — a full harmonic journey in three chords.
What are the I, IV, and V chords in G major?
G (I), C (IV), and D (V) — the same relationship as C-F-G, shifted to a new key.
Play I-IV-V in any key, instantly
Melody Monkey visualizes chord progressions on a live guitar, bass, ukulele, or piano.
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