C7 shapes on piano

C7 is C, E, G and B♭ — the 1, 3, 5 and ♭7 of C. On the piano there are 4 shapes to walk with ‹ ›; tap any note on the piano to pick the shape that holds it. Major triad plus a flat 7th — tense and bluesy About the dominant 7th →

Also written Cdom7, C dominant 7, C dominant seventh, Cdominant and C dom 7.