Jazz lead sheet · Beginner
12-Bar Blues in C
The same blues shape in C, the easiest key to see on the piano.
- Composer
- Traditional form
- Form
- 12-bar blues
- Key
- C major
- Style
- Blues
- Length
- 12 bars
BluesC major
I7C Mixolydian
IV7F Mixolydian
I7C Mixolydian
I7C Mixolydian
IV7F Mixolydian
IV7F Mixolydian
I7C Mixolydian
I7C Mixolydian
V7G Mixolydian
IV7F Mixolydian
I7C Mixolydian
V7G Mixolydian
For students
What to notice
- The chords are C7 (I7), F7 (IV7) and G7 (V7): the same I–IV–V blues in a new key.
- Only the names change. The three 4-bar phrases and the V–IV–I ending stay exactly the same.
- Hearing one form in several keys is the fastest way to make the blues automatic.
Practice plan
Three steps to improvising
- Play the roots in C, then move the same feel to F and B♭.
- Arpeggiate C7, F7 and G7, naming the 3rd and 7th of each.
- Improvise with the C blues scale and land on E (the 3rd of C7) at each change.
For teachers
Using this chart in class
- Project the chart with Play along running and loop one section while students find the guide tones.
- Choose Practice → Name the numerals for a whole-class quiz: students vote, then reveal the explanation.
- Mixed ensemble? Print the worksheet once per transposition: B♭, E♭, F and bass clef parts all line up bar for bar.
- Share a link: the key, instrument and view you choose are saved in the address bar.
Chord changes are common performance versions written out by Music Theory Lessons. No melodies or lyrics are reproduced. Names of songs and composers are used only to identify each tune.