C#sus2 Sus2 Akkord

Replaces the third with a major second. Open, unresolved, modern sound.

C#sus2 Akkord — Quick Answer & Harmonic Definition

The C#sus2 (Suspended 2nd) chord consists of the notes C#, D#, G#. It is constructed from the root note C# using the suspended 2nd interval formula (0–2–7 semitones).

Formula: 0 – 2 – 7
Notes
C# – D# – G#
Intervals (semitones)
0 – 2 – 7
Type
Triad

C#sus2 on Piano

Press highlighted keys simultaneously to play the C#sus2 chord.

R
C# (Root (R))
2
D# (Major 2nd / 9th)
3
G# (Perfect 5th)

C#sus2 on Guitar

The C#sus2 chord uses notes C#, D#, G#. Build a voicing by finding these notes on any strings — root on the 6th string is a common starting point for barre chord shapes.

Interval Analysis

Degree Interval Name Semitones Note in C#
Root Root (R) 0 C#
3rd Major 2nd / 9th 2 D#
5th Perfect 5th 7 G#

About the C# Sus2 Chord

The C#sus2 chord (C# Sus2) consists of 3 notes: C#, D#, G#. Replaces the third with a major second. Open, unresolved, modern sound.

To build any suspended 2nd chord, apply intervals of 0, 2, 7 semitones above the root. Starting from C#: the notes land on C#, D#, G#.

Playing C#sus2 on Piano

Press C#, D#, G# simultaneously. In root position, C# is lowest. First inversion places D# in the bass for a lighter sound; second inversion uses G# as the bass note.

Common Chord Progressions Using C#sus2

  • I–IV–V: C#sus2 – F#sus2 – G#sus2 (blues and rock)
  • I–V–vi–IV: C#sus2 – G# – A#m – F# (pop staple)
  • I–vi–IV–V: C#sus2 – A#m – F# – G# (50s progression)

The C#sus2 Chord in Context

The C#sus2 (Sus2) chord features a distinctive replaces the third with a major second. open, unresolved, modern sound. built from the intervals 0–2–7. It provides rich harmonic color and tension across pop, jazz, classical, and contemporary compositions.

Other C# Chords

C#
Major
C#m
Minor
C#7
Dominant 7th
C#maj7
Major 7th
C#m7
Minor 7th
C#dim
Diminished

Sus2 Chord in All 12 Keys

Csus2 C#sus2 Dsus2 D#sus2 Esus2 Fsus2 F#sus2 Gsus2 G#sus2 Asus2 A#sus2 Bsus2
Virtual Piano
Play C#sus2 on piano
Virtual Guitar
See on the fretboard
C# Scale
Notes that fit C#sus2
Songs
Find songs using C#sus2

Knowledge Base & FAQs

C#sus2 Chord — Frequently Asked Questions

Everything you need to know about our browser-based Web Audio engine, instruments, and music theory workspace.

What notes are in the C#sus2 chord?

The C# Sus2 chord contains: C#, D#, G#.

These notes are derived by applying the suspended 2nd interval formula (0–2–7 semitones) to the root note C#.

What is the C#sus2 chord used for?

Replaces the third with a major second.

Open, unresolved, modern sound. The C#sus2 chord is used across pop, rock, jazz, and classical music. As the I chord in the key of C# major, it functions as the most stable resting point in progressions.

How do you play C#sus2 on piano?

On piano, play C#, D#, G# simultaneously.

In root position, C# is the lowest note. Inversions move the bass note up — first inversion has D# lowest, second inversion has G# lowest.

How many notes are in a suspended 2nd chord?

A suspended 2nd chord has 3 notes: C#, D#, G# (in C#).

It is a triad — the most fundamental chord type.

What is the difference between C# major and C# minor?

The C# major chord (C#–F–G#) uses a major third (4 semitones), giving it a bright, happy sound.

The C# minor chord (C#–E–G#) uses a minor third (3 semitones), giving it a darker, emotional sound.

What key does C#sus2 belong to?

C#sus2 naturally serves as the I chord in the key of C# major.

It also appears as IV in the key of G# major, and as V in the key of F# major.

Can I play C#sus2 on ukulele?

Yes.

The ukulele uses GCEA tuning with 4 strings. The C#sus2 chord notes (C#, D#, G#) can be fretted on a ukulele, though the shapes differ from guitar due to the 4-string layout and shorter scale.

What chords go well with C#sus2?

In the key of C# major, C#sus2 pairs naturally with F# major (IV), G# major (V), and A#m (vi).

The classic I–IV–V (C#sus2–F#–G#) is the foundation of blues, country, and rock.

What is a chord inversion of C#sus2?

An inversion places a non-root note in the bass.

C#sus2 root position: C# in bass. First inversion: D# in bass. Second inversion: G# in bass. Inversions create smoother bass line movement without changing the harmony.

How do I memorize the notes in a suspended 2nd chord?

Remember the formula: 0–2–7 semitones from root.

For C#sus2: start on C#, add 2 semitones, then 7 semitones. Practicing this across all 12 roots builds instant recognition of any suspended 2nd chord.