Progression (Roman Numerals)	Common Key Examples (C / G)	Musical Vibe	Famous Song Examples
I – V – vi – IV	C – G – Am – F / G – D – Em – C	Uplifting, Epic, Catchy	“Don’t Stop Believin'” (Journey) “Let It Be” (The Beatles)
I – IV – V	C – F – G / G – C – D	Bright, Energetic, Simple	“La Bamba” (Ritchie Valens) “Ring of Fire” (Johnny Cash)
ii – V – I	Dm7 – G7 – Cmaj7 / Am7 – D7 – Gmaj7	Jazz, Smooth, Resolved	“Autumn Leaves” Most Jazz Standards
I – vi – IV – V	C – Am – F – G / G – Em – C – D	Retro, Romantic, Nostalgic	“Stand by Me” (Ben E. King) “Unchained Melody” (The Righteous Brothers)
vi – IV – I – V	Am – F – C – G / Em – C – G – D	Moody, Driving, Dramatic	“Counting Stars” (OneRepublic) “Despacito” (Luis Fonsi)
I – bVII – IV	C – Bb – F / G – F – C	Rocking, Rebellious, Gritty	“Sweet Home Alabama” (Lynyrd Skynyrd) “Hey Jude” (The Beatles)
i – bVI – bVII	Am – F – G / Em – C – D	Epic, Dark, Heroic	“All Along the Watchtower” (Jimi Hendrix) “Stairway to Heaven” (Led Zeppel