C# 6(b5)/F#

The C# 6(b5) chord consists of the C# (Perfect unison), F (Major third), G (Diminished fifth) and A# (Major sixth) notes, with F# as the bass note.

Piano keyboard showing the notes for a C# 6(b5)/F# chord

How to play the C# 6(b5)/F# chord

  1. Play F# as the lowest bass note in the left hand
  2. Find C# (Root) on the piano keyboard
  3. Add F (Major third) — 4 semitones above C#
  4. Add G (Diminished fifth) — 6 semitones above C#
  5. Add A# (Major sixth) — 9 semitones above C#
  6. Press all 5 notes simultaneously to sound the C# 6(b5)/F# chord

Related slash chords