C7#5 chord
C augmented 7th
C
E
G#
Bb
C5
Want it in context? Open C7#5 on the full piano.
Notes
- CR
- E3
- G##5
- Bbb7
Formula: R – 3 – #5 – b7
C7#5 inversions
The same notes, with a different note in the bass.
Root position C7#5
C
E
G#
Bb
C5
1st inversion C7#5/E
C4
E
G#
Bb
C
2nd inversion C7#5/G#
C4
G#
Bb
C
E
3rd inversion C7#5/Bb
C4
Bb
C
E
G#
More C chords
Augmented 7th chords in other keys
FAQ
What notes are in the C7#5 chord?
The C augmented 7th chord (C7#5) has 4 notes: C, E, G# and Bb.
How do you play C7#5 on the piano?
Put your right hand on C, E, G# and Bb, starting from C. A common fingering for three-note chords is thumb (1), middle finger (3) and little finger (5).
What is the formula of a augmented 7th chord?
R – 3 – #5 – b7 (in semitones from the root: 0, 4, 8, 10).