I–vi–IV–V bass lines in all 12 keys
The 1950s doo-wop progression, still everywhere in pop and soul.
Numerals: I · vi · IV · V. Play the arpeggios in triplets for a 50s ballad feel.
Chords in every key
- CC Am F G
- GG Em C D
- DD Bm G A
- AA F♯m D E
- EE C♯m A B
- BB G♯m E F♯
- F♯F♯ D♯m B C♯
- D♭D♭ B♭m G♭ A♭
- A♭A♭ Fm D♭ E♭
- E♭E♭ Cm A♭ B♭
- B♭B♭ Gm E♭ F
- FF Dm B♭ C