How to play C7
C dominant seventh — A major triad plus a flattened seventh. The dominant chord — it leans hard toward resolution, and is the backbone of blues.
Notes in C7
- Croot
- Emajor 3rd
- Gperfect 5th
- A#minor 7th
C7 on guitar
C7 on ukulele
C7 on piano
Tune up before you play it
A dominant seventh chord is unforgiving of a flat third. Check the guitar with the browser tuner, then practise the change with the metronome.