C#9b5 chord on piano

C Sharp Dominant Ninth Flat Five, also written Db9b5. Notes: C#, F, G, B and D#.

C#9b5 piano chord, root positionC4FGBC5C#D#
Root position. Tap any key to hear it.

How to play C#9b5

  1. Find C# at or above middle C. That is the root.
  2. Add F, G, B and D# above it, skipping the keys in between.
  3. Right hand fingering: 1-2-3-4-5, or split the chord between both hands. Left hand: play the root and fifth, and leave the upper notes to the right hand.

Notes

C#root
F3 · major third
Gb5 · diminished fifth
Bb7 · minor seventh
D#9 · ninth

Notes and theory

C#root
F3 · major third
Gb5 · diminished fifth
Bb7 · minor seventh
D#9 · ninth

The 9b5 is a dominant ninth with a lowered fifth, a jazz chord with a lot of tension. The formula is 1 3 b5 b7 9. Strictly by music theory the notes are spelled C#, E#, G, B and D#; E# is the same key as F.

More C# chords

All C# piano chords

dominant ninth flat five chords in every key

Questions

What notes are in the C#9b5 chord?

C#9b5 (C sharp dominant ninth flat five) is made of five notes: C# (root), F (major third), G (diminished fifth), B (minor seventh) and D# (ninth).

How do you play C#9b5 on piano?

Play C#, F, G, B and D# together. With the right hand use fingers 1-2-3-4-5, or split the chord between both hands; with the left hand use play the root and fifth, and leave the upper notes to the right hand.

What does a dominant ninth flat five chord sound like?

The 9b5 is a dominant ninth with a lowered fifth, a jazz chord with a lot of tension.