C♯dim7 chord on piano
C# diminished 7th: C♯ · E · G · B♭. It sounds maximum suspense — stacked minor 3rds that could resolve four different ways.
NotesC♯ E G B♭
Built fromroot + minor 3rd + diminished 5th + diminished 7th
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On the keyboard
Fingering
Right hand, root position: C♯ — finger 1 · E — finger 2 · G — finger 3 · B♭ — finger 5. (1 = thumb, 5 = little finger.)
Inversions
The same notes in a different order. Inversions are how players move between chords without jumping:
- RootC♯ – E – G – B♭
- 1stE – G – B♭ – C♯
- 2ndG – B♭ – C♯ – E
- 3rdB♭ – C♯ – E – G
Songs that use C♯dim7
J. CarterThe Narrow Stair
C major · Intermediate
J. CarterThe Elevator
C major · Advanced
J. CarterStained Glass
Bb major · Intermediate