12-Bar Blues
Full page: 12-Bar Blues →I7 — I7 — I7 — I7 — IV7 — IV7 — I7 — I7 — V7 — IV7 — I7 — V7
Classic 12-bar blues form
Genre
Blues chord progressions
African-American genre with characteristic 12-bar form and blue notes
What makes it sound like this
Harmonic fingerprints.
- 12-bar blues form
- Dominant 7th chords
- Blue notes (b3, b5, b7)
- I-IV-V progression
Where it lives
Common keys.
The tonal centres blues keeps coming back to — usually because they sit well on the instruments the style was built on. Each key page carries its full diatonic chord set, and links its relative minor for the darker corners of the genre.
4 progressions
The changes blues runs on.
Written in roman numerals, then spelled out in the key of C. Every chord links to its own page; where the pattern has a full progression page of its own, that link is on the card.
Quick Change Blues
I7 — IV7 — I7 — I7 — IV7 — IV7 — I7 — I7 — V7 — IV7 — I7 — V7
Blues with quick IV in bar 2
Minor Blues
i7 — i7 — i7 — i7 — iv7 — iv7 — i7 — i7 — V7 — iv7 — i7 — V7
Minor key blues progression
8-Bar Blues
Full page: 8-Bar Blues →I7 — V7 — IV7 — IV7 — I7 — V7 — I7 — V7
Shortened blues form
Vocabulary
The chords that define the sound.
Not just which qualities blues reaches for, but those qualities built on the roots the genre actually plays in. Every chord links to its shapes, audio, and voice-leading notes.