F# minor/C
The F# minor chord consists of the F# (Perfect unison), A (Minor third) and C# (Perfect fifth) notes, with C as the bass note.

How to play the F# minor/C chord
- Play C as the lowest bass note in the left hand
- Find F# (Root) on the piano keyboard
- Add A (Minor third) — 3 semitones above F#
- Add C# (Perfect fifth) — 7 semitones above F#
- Press all 4 notes simultaneously to sound the F# minor/C chord