5. Essential Chord Progressions to Practice

A huge share of popular music is built from a small handful of chord progressions, reused across genres and decades. Learning these patterns by feel — not just by name — will let you predict where a lot of songs are headed before you even hear them, and will let you start writing your own songs faster than working out every chord from scratch.

• I–IV–V — the backbone of blues and rock (e.g., C–F–G)
• vi–IV–I–V — the "four chord pop" progression (e.g., Am–F–C–G)
• I–V–vi–IV — another pop staple (e.g., C–G–Am–F)
• ii–V–I — the core jazz cadence (e.g., Dm7–G7–Cmaj7)
• I–vi–IV–V — the classic 1950s "doo-wop" progression (e.g., C–Am–F–G)

The roman numerals here refer to scale degrees, not fixed chords — "I" always means the chord built on the first note of the key you're in, "V" the chord built on the fifth note, and so on. That's why the same progression name (like I–V–vi–IV) can be played in any key using completely different letter names, and it'll still have the exact same emotional shape.

If you're trying to figure out a song's progression by ear, start by finding the "home" chord — the one that feels most resolved, like the song could end on it — and call that your I. From there, most of the other chords in the song will map onto one of the patterns above, or a close variation of one.

Loop one of these slowly with a metronome, then try substituting a slash chord or extended voicing from the dictionary in place of one chord — swapping a plain G for a G/B, or a C for a Cmaj7, can completely change the character of a progression you already know by heart, without changing its underlying function at all.