Chord · Altered Dom.

C7♭13 — C Dominant 7th ♭13

C7♭13 is the C dominant 7th ♭13 chord. It is built on the root C with major 3rd (E), perfect 5th (G), minor 7th (B♭) and minor 13th (A♭) above it — the formula 1 3 5 ♭7 ♭13, sounding the notes C E G B♭ A♭. On the piano it sits at C (octave 4) and above in the library's voicing; the same 5 notes in any octave are still C7♭13.

Root
C
Quality
Dominant 7th ♭13
Formula
1 3 5 ♭7 ♭13
Notes
C E G B♭ A♭

On the keyboard

C7♭13 on the piano keyboard: C E G B♭ A♭CEGB♭A♭

The notes of C7♭13

DegreeNoteInterval from the rootPitch
1CrootC4
3Emajor 3rdE4
5Gperfect 5thG4
♭7B♭minor 7thB♭4
♭13A♭minor 13thA♭5

Other altered dom. on C

Dominant 7th ♭13 chords on every root

Part of the chord reference. See also the scales and the keys.