The C♯ Suspended 2nd chord is a three-note chord made up of C♯, D♯, and G♯. It is built from a root, major second, and perfect fifth.
Construction
C♯ Suspended 2nd = Root + Major 2nd + Perfect 5th = C♯ · D♯ · G♯
| Note | Interval | Degree |
|---|---|---|
| C♯ | Root | 1 |
| D♯ | Major 2nd | 2 |
| G♯ | Perfect 5th | 5 |
C♯ Suspended 2nd Inversions
| Position | Notes |
|---|---|
| Root Position | C♯ – D♯ – G♯ |
| 1st Inversion | D♯ – G♯ – C♯ |
| 2nd Inversion | G♯ – C♯ – D♯ |
Key Signature
A Suspended 2nd chord is built from symmetrical or ambiguous intervals, so it doesn’t belong to a single key and has no key signature of its own.
Same Notes, Other Names
The notes C♯ – D♯ – G♯ aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell:
C♯ Suspended 2nd — Frequently Asked Questions
What is the C♯ Suspended 2nd chord on piano?
The C♯ Suspended 2nd chord contains the notes C♯ – D♯ – G♯. On piano, play these notes together to sound the chord.
What notes are in the C# Suspended 2nd chord?
The C# Suspended 2nd chord (C#sus2) contains: C# (root), D# (major 2nd), and G# (perfect fifth). The major 2nd replaces the third entirely — there is no major or minor third, giving this chord its open, floating quality.
How does C# Suspended 2nd differ from C# Major or C# Minor?
Both C# Major and C# Minor have a third (E or Eb for C-based chords). C# Suspended 2nd replaces that third with a major 2nd (D#). This suspension creates ambiguity — the chord is neither major nor minor and has a bright, airy sound often used for colour and transition.
What does "suspended" mean in music?
"Suspended" means the third has been replaced (suspended) by another note — in this case, the 2nd degree. The suspension creates tension that traditionally resolves back to the third (moving from D# to the major or minor third). In pop music, suspended chords often remain unresolved for their pleasant, neutral sound.
How is C# Suspended 2nd used in music?
Sus2 chords are widely used in pop, rock, and folk as colour chords that avoid defining major or minor quality. C#sus2 works before or after a C# Major chord in the same harmonic context, creating a shimmer effect. It also appears at phrase endings for an open, unresolved feeling.
What songs use suspended 2nd chords?
Suspended chords are everywhere in pop: Every Breath You Take (Police) uses sus chords throughout. Pinball Wizard (The Who) opens with sus4 chords. Somebody That I Used to Know (Gotye) uses sus2 for its characteristically open sound. The floating quality of sus2 chords suits introspective and atmospheric music.
Can I use C# Suspended 2nd and C# Major together?
Yes — alternating between C#sus2 and C# Major is a very common pop technique. The movement C#–D#–G# → C#–(major 3rd)–G# creates a shimmer with only one note changing. This single-note movement is the basis of many recognisable piano and guitar parts.