Chord Information
Learn how to play C#aug on piano
Notes in Chord
Intervals
Inversion
Notes (bottom to top): C#4 - F4 - A4
Right Hand Fingering
3=middle, 4=ring, 5=pinky
Interactive Piano
Click the highlighted keys to play the C#aug chord
About the C#aug Chord
The C# augmented chord, often written as Db augmented, creates an exotic, floating quality that seems to belong to no particular key. Built from C#-E#-G## (or Db-F-A), this chord sits in remote harmonic territory, making it particularly effective for moments of transformation or surprise in music.
The enharmonic flexibility of C#/Db augmented is remarkable. Spelled as Db-F-A, it's more readable and connects to F augmented and A augmented. This three-way relationship allows the chord to pivot smoothly to multiple different keys with equal logic, making it a powerful tool for unexpected modulations.
On the keyboard, C# augmented presents an interesting mix of black and white keys (or all-white as Db-F-A). Understanding both spellings helps navigate different musical contexts and makes reading augmented chord passages easier.
Music Theory & Usage
C#/Db augmented often appears in chromatic passages or as an altered dominant chord. In the key of F# major, C#+ can function as an altered V chord. In Db contexts, it provides chromatic color moving toward Gb or other flat-key destinations.
Jazz musicians encounter C#+ in altered dominant voicings and whole-tone scale applications. Classical composers used it for impressionistic, floating harmonies. Its remote position makes it effective for sudden shifts in harmonic color.
Famous Songs Using C#aug
Hear how professional musicians use the C#aug chord in these well-known songs:
“Martha My Dear”
by The Beatles
Paul McCartney uses augmented harmonies in the sophisticated arrangement
“Being for the Benefit of Mr. Kite”
by The Beatles
Carnival-like atmosphere includes augmented chord colors
“Prelude to the Afternoon of a Faun”
by Claude Debussy
Impressionistic harmony includes augmented sonorities
“You Are the Sunshine of My Life”
by Stevie Wonder
Uses sophisticated chromatic harmony including augmented movement
How to Play C#aug on Piano
- Place your thumb on C#.
- Place your middle finger on F.
- Place your pinky finger on A.
- Press all keys simultaneously to hear the C#aug chord.
Recommended fingering: 1-3-5 (right hand)
C#aug Chord Inversions
The C#aug chord can be played in different inversions:
Root Position
C# - F - A (bass note: C#)
First Inversion
F - A - C# (bass note: F)
Second Inversion
A - C# - F (bass note: A)
Common Chord Progressions Using C#aug
I-IV-V Progression
Common chord progression
I-V-vi-IV Progression
Common chord progression
Practice Tips for C#aug
- Start slowly and focus on pressing all keys simultaneously for a clean sound.
- Practice transitioning between C#aug and other common chords to build muscle memory.
- This is a fundamental chord - master it in all inversions before moving to complex chords.
- Try playing C#aug as part of simple progressions to understand its harmonic function.
Frequently Asked Questions about C#aug
Should I use C# augmented or Db augmented?
Use the spelling that makes sense in your harmonic context. Db+ (Db-F-A) is often easier to read and connects clearly to F+ and A+. Use C#+ (C#-E#-G##) in sharp-key contexts. Both sound identical.
What is the fingering for Db augmented?
For Db-F-A (all white except Db): right hand 2-3-5 or 1-2-4, starting with index or thumb on Db. For left hand, 5-3-1 works well. The shape is comfortable once you locate the Db black key.
What keys can C#/Db augmented connect?
C#+ connects C#/Db, F, and A equally well due to augmented symmetry. It can pivot from Db major to F major to A major, or serve as a chromatic passing chord in progressions involving these keys.
How do I use Db augmented in a progression?
Try Db to Db+ to Gb (the A moves to Bb), or F to Db+ to Dm (chromatic voice leading). Augmented chords work best as passing or pivot chords rather than destinations. One measure or less is usually enough.