D m(#5)/C#
The D m(#5) chord consists of the D (Perfect unison), F (Minor third) and A# (Minor sixth) notes, with C# as the bass note.
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How to play the D m(#5)/C# chord
- Play C# as the lowest bass note in the left hand
- Find D (Root) on the piano keyboard
- Add F (Minor third) — 3 semitones above D
- Add A# (Minor sixth) — 8 semitones above D
- Press all 4 notes simultaneously to sound the D m(#5)/C# chord