C 7sus4 (C7sus4) chord on mandolin

The C 7sus4 chord (C7sus4) is a 7sus4 chord (a sus4 chord plus a minor seventh), made of four notes: C – F – G – B♭.

Dots show:

Basic shapemedium

Position 1medium

Position 5medium

Position 8easy

Tap a string on a diagram to hear just that string. The sound is generated in your browser with a physical string model.

Chord finder Transposer Tuner

What the C7sus4 chord sounds like

A 7sus4 is a suspended dominant seventh: a fourth replaces the third. It is less tense than a plain 7 chord and popular in funk, jazz and modern pop.

Notes of the C7sus4 chord

Degree	Note	Interval from the root
1	C	root
4	F	perfect fourth (5 semitones)
5	G	perfect fifth (7 semitones) – often omitted on fretted instruments
7	B♭	minor seventh (10 semitones)

How to play it – with fingering

Basic shape

String 1 (E): fret 3, little finger (G5)
String 2 (A): fret 3, ring finger (C5)
String 3 (D): fret 3, middle finger (F4)
String 4 (G): fret 3, index finger (B♭3)

Position 1

String 1 (E): fret 1, index finger (F5)
String 2 (A): fret 3, ring finger (C5)
String 3 (D): fret 3, ring finger (F4)
String 4 (G): fret 3, ring finger (B♭3)

Position 5

String 1 (E): fret 8, little finger (C6)
String 2 (A): fret 8, little finger (F5)
String 3 (D): fret 8, little finger (B♭4)
String 4 (G): fret 5, index finger (C4)

Tuning: G D A E, like a violin; every note is a pair of strings that you fret together. In the diagram, × means the string is not played, and a circle means an open string.

Which keys is it in?

The C7sus4 chord is built from the notes of these keys (for minor keys, both the natural and the harmonic minor are considered):

C minor: I7sus4 (tonic)
F major: V7sus4 (dominant)
F minor: V7sus4 (dominant)
G minor: IV7sus4 (subdominant)
A♭ major: III7sus4
E♭ major: VI7sus4
B♭ major: II7sus4
D minor: VII7sus4

Similar chords and substitutes

If C7sus4 is too hard, or you want a different colour in the same spot, these chords are worth a try.

Substitutes (by function)

F♯7 – tritone substitute: the same third and seventh, swapped – a jazz favourite
Edim7 – diminished seventh on the third: a common stand-in for the dominant
C7 – a simpler dominant
F – where it resolves (V → I)

Simpler versions

Csus4 – all 3 of its notes are in this chord

Richer versions

C11 – the same chord plus 2 colour notes

Frequently asked questions

What notes are in the C7sus4 chord?

C, F, G, B♭. The root is C; the intervals of the other notes from the root: perfect fourth, perfect fifth, minor seventh.

What is the easiest way to play C7sus4 on mandolin?

The easiest shape above is “Position 8”, rated easy. We show 4 shapes, from open and easy versions to movable barre shapes higher up the neck.

How do I read the chord diagram?

Strings run from the lowest (left) to the highest (right) – tick “Left-handed” to mirror it. Rows are frets; a number at the side shows the starting fret. Dots are fingers (1 index, 2 middle, 3 ring, 4 little), a long bar is a barre, × means don't play that string and ○ means play it open.

Why is a note missing from some C7sus4 shapes?

On a fretted instrument you can't always play every note of a 4-note chord. The fifth (G) may be dropped – the chord keeps its character without it.

How is the C7sus4 chord written?

The chord symbol is C7sus4, and its full name is C 7sus4.