C6/9
C six nine
- Formula
- 1–3–5–6–9
- Written tones
- C · E · G · A · D
- Example
- C3 · E3 · G3 · A3 · D4
The added member has the pitch class of the second. The two layouts on each detail page place that member above the triad or inside it.
Piano chord family
Add9 Chords
Explore major add9 and minor add9: a third is retained and no seventh is included in these complete four-note references.
Compare major and minor add9 chords, see their notes, and explore two voicing layouts for each reference.
Browse by root note
Add chord chart
24 chords
Major add9 chords
12 chordsC add9
Cadd9C – E – G – DFormula 1–3–5–9
D-flat add9
D♭add9D♭ – F – A♭ – E♭Formula 1–3–5–9
D add9
Dadd9D – F♯ – A – EFormula 1–3–5–9
E-flat add9
E♭add9E♭ – G – B♭ – FFormula 1–3–5–9
E add9
Eadd9E – G♯ – B – F♯Formula 1–3–5–9
F add9
Fadd9F – A – C – GFormula 1–3–5–9
F-sharp add9
F♯add9F♯ – A♯ – C♯ – G♯Formula 1–3–5–9
G add9
Gadd9G – B – D – AFormula 1–3–5–9
A-flat add9
A♭add9A♭ – C – E♭ – B♭Formula 1–3–5–9
A add9
Aadd9A – C♯ – E – BFormula 1–3–5–9
B-flat add9
B♭add9B♭ – D – F – CFormula 1–3–5–9
B add9
Badd9B – D♯ – F♯ – C♯Formula 1–3–5–9
Minor add9 chords
12 chordsC minor add9
Cm(add9)C – E♭ – G – DFormula 1–♭3–5–9
D-flat minor add9
D♭m(add9)D♭ – F♭ – A♭ – E♭Formula 1–♭3–5–9
D minor add9
Dm(add9)D – F – A – EFormula 1–♭3–5–9
E-flat minor add9
E♭m(add9)E♭ – G♭ – B♭ – FFormula 1–♭3–5–9
E minor add9
Em(add9)E – G – B – F♯Formula 1–♭3–5–9
F minor add9
Fm(add9)F – A♭ – C – GFormula 1–♭3–5–9
F-sharp minor add9
F♯m(add9)F♯ – A – C♯ – G♯Formula 1–♭3–5–9
G minor add9
Gm(add9)G – B♭ – D – AFormula 1–♭3–5–9
A-flat minor add9
A♭m(add9)A♭ – C♭ – E♭ – B♭Formula 1–♭3–5–9
A minor add9
Am(add9)A – C – E – BFormula 1–♭3–5–9
B-flat minor add9
B♭m(add9)B♭ – D♭ – F – CFormula 1–♭3–5–9
B minor add9
Bm(add9)B – D – F♯ – C♯Formula 1–♭3–5–9
Keep the third; do not add a seventh
Read add9 and add2 with the arrangement
Open Music Theory illustrates an upper ninth and an inside-the-triad second. Musicca also lists add2 as an alternative notation. The examples show the actual registers rather than enforcing a universal label rule.
Two tasks, two kinds of feedback
Build the chord tones accepts the correct pitch classes in any octave. Match this example asks for the exact displayed pitches. An octave mismatch is not automatically a different chord.
Continue with a specific chord
Compare the major and minor added-note forms at the same root, or return to the basic triad chart. The existing Finder and progression tools retain their separately stated coverage.
Additional supported references
These compact references add verified formulas and example voicings without a separate page.
D♭6/9
D♭ six nine
- Formula
- 1–3–5–6–9
- Written tones
- D♭ · F · A♭ · B♭ · E♭
- Example
- D♭3 · F3 · A♭3 · B♭3 · E♭4
D6/9
D six nine
- Formula
- 1–3–5–6–9
- Written tones
- D · F♯ · A · B · E
- Example
- D3 · F♯3 · A3 · B3 · E4
E♭6/9
E♭ six nine
- Formula
- 1–3–5–6–9
- Written tones
- E♭ · G · B♭ · C · F
- Example
- E♭3 · G3 · B♭3 · C4 · F4
E6/9
E six nine
- Formula
- 1–3–5–6–9
- Written tones
- E · G♯ · B · C♯ · F♯
- Example
- E3 · G♯3 · B3 · C♯4 · F♯4
F6/9
F six nine
- Formula
- 1–3–5–6–9
- Written tones
- F · A · C · D · G
- Example
- F3 · A3 · C4 · D4 · G4
F♯6/9
F♯ six nine
- Formula
- 1–3–5–6–9
- Written tones
- F♯ · A♯ · C♯ · D♯ · G♯
- Example
- F♯3 · A♯3 · C♯4 · D♯4 · G♯4
G6/9
G six nine
- Formula
- 1–3–5–6–9
- Written tones
- G · B · D · E · A
- Example
- G3 · B3 · D4 · E4 · A4
A♭6/9
A♭ six nine
- Formula
- 1–3–5–6–9
- Written tones
- A♭ · C · E♭ · F · B♭
- Example
- A♭3 · C4 · E♭4 · F4 · B♭4
A6/9
A six nine
- Formula
- 1–3–5–6–9
- Written tones
- A · C♯ · E · F♯ · B
- Example
- A3 · C♯4 · E4 · F♯4 · B4
B♭6/9
B♭ six nine
- Formula
- 1–3–5–6–9
- Written tones
- B♭ · D · F · G · C
- Example
- B♭3 · D4 · F4 · G4 · C5
B6/9
B six nine
- Formula
- 1–3–5–6–9
- Written tones
- B · D♯ · F♯ · G♯ · C♯
- Example
- B3 · D♯4 · F♯4 · G♯4 · C♯5