C#7#5 chord on piano

C Sharp Augmented Seventh, also written Db7#5. Notes: C#, F, A and B.

C#7#5 piano chord, root positionC4FABC5C#
Root position. Tap any key to hear it.

How to play C#7#5

  1. Find C# at or above middle C. That is the root.
  2. Add F, A and B above it, skipping the keys in between.
  3. Right hand fingering: 1-2-3-5. Left hand: 5-3-2-1.

Notes

C#root
F3 · major third
A#5 · augmented fifth
Bb7 · minor seventh

C#7#5 inversions

An inversion moves the lowest note up an octave. Same notes, smoother jumps between chords.

C#7#5 Root positionC4FABC5C#

Root position

C# · F · A · B
C#7#5 1st inversionC4FABC5C#

1st inversion

F · A · B · C#
C#7#5 2nd inversionC4ABC5FC#

2nd inversion

A · B · C# · F
C#7#5 3rd inversionC4BC5FAC#

3rd inversion

B · C# · F · A

Notes and theory

C#root
F3 · major third
A#5 · augmented fifth
Bb7 · minor seventh

The augmented seventh (7#5) raises the fifth of a dominant seventh, which pushes hard toward the next chord. The formula is 1 3 #5 b7, and you will also see it written as C#aug7 and C#+7. Strictly by music theory the notes are spelled C#, E#, G## and B; E# is the same key as F and G## is the same key as A.

More C# chords

All C# piano chords

augmented seventh chords in every key

Questions

What notes are in the C#7#5 chord?

C#7#5 (C sharp augmented seventh) is made of four notes: C# (root), F (major third), A (augmented fifth) and B (minor seventh).

How do you play C#7#5 on piano?

Play C#, F, A and B together. With the right hand use fingers 1-2-3-5; with the left hand use 5-3-2-1.

What are the inversions of C#7#5?

Root position: C# F A B. 1st inversion: F A B C#. 2nd inversion: A B C# F. 3rd inversion: B C# F A.

What does a augmented seventh chord sound like?

The augmented seventh (7#5) raises the fifth of a dominant seventh, which pushes hard toward the next chord.