C Dominant 7th Chord

Symbol: C7

Diagrams

Staff Notation

Staff Notation

Piano Keyboard

C7 chord – keys C, E, G, Bb highlightedPiano keyboard with keys C, E, G, Bb highlighted. C is the root note.CEGBb
C7 chord – keys C, E, G, Bb highlightedPiano keyboard with keys C, E, G, Bb highlighted. C is the root note.CEGBb

Guitar (1)

Guitar chord diagram for C7Guitar chord voicing with notes C, E, Bb, C, E.C73241

Guitar (2)

Guitar chord diagram for C7 (8fr)Guitar chord voicing with notes C, G, Bb, E, G, C.C7 (8fr)832

Guitar (3)

Guitar chord diagram for C7 (3fr)Guitar chord voicing with notes C, G, Bb, E, G.C7 (3fr)334

Intervals

NoteIntervalSemitones
CP10
EM34
GP57
Bbm710

About the C Dominant 7th Chord

The C Dominant 7th chord is built from the notes C, E, G, Bb. These notes are derived by stacking intervals above the root note C, following the interval pattern that defines every Dominant 7th chord. Understanding how a chord is constructed from intervals is one of the most valuable skills in music theory, because it allows you to build the chord in any key and recognize it in any context.

You can use this chord in a variety of musical contexts. Try exploring the scales that contain these notes to discover which keys this chord naturally belongs to. Each scale listed above shares all the notes of this chord, making it a diatonic chord within that key. Understanding these relationships helps with songwriting, improvisation, and arranging.

Try C7 in the Chord Identifier →