Learn › Fadd9 Chord on Piano (F Add 9)
New Released in April 2026
Fadd9 Chord on Piano (F Add 9)
To play the Fadd9 chord on the piano, press F, A, C and G. It is the major triad F plus the 9th, G, with no seventh in between. Its sound: clear and sparkling, the plain triad with one extra colour.
No account, no download. The demo has limited content. Advanced features are in ChordRunner Premium.
- MIDI keyboard
- Digital or acoustic piano
- Guitar
- Computer, phone or tablet
Where your hand goes for Fadd9
Learn them in pairs: root position first, then the one that keeps the most notes still.
Root position: F G A C
1st inversion: A C F G
2nd inversion: C F G A
Which fingers
| Right hand | F G A C | 1 2 3 5 |
|---|---|---|
| Left hand | F G A C | 5 4 3 1 |
The chord hiding inside Fadd9
Take Fsus2 (F G C) and add the third A: you have Fadd9. That is why Fadd9 still sounds major, while Fsus2 does not.
Building Fadd9 from F
Formula 1 3 5 9. Count from F and every number is a step of the F major scale, and a b lowers it by one key.
Start chord: F
| Note | Step | Interval | Keys from F |
|---|---|---|---|
| F | 1 | root | 0 |
| A | 3 | major 3rd | 4 |
| C | 5 | perfect 5th | 7 |
| G | 9 | major 9th | 14 |
A short Fadd9 routine
- Say the notes out loud while you press them: F, A, C and G.
- Switch between F and Fadd9 ten times without looking at your hand.
- Alternate root position and 1st inversion, keeping shared notes still.
- Last, meet Fadd9 mixed with chords you already know, in an order you did not plan.
Five minutes a day is enough to make Fadd9 feel easy.
Where Fadd9 is used
- Fadd9 fits wherever F fits: F major, C major and Bb major.
- Pop and worship songs use it in place of plain F to make a simple progression sound fuller.
Turn Fadd9 into a reflex
In ChordRunner every correct chord moves your runner forward. Plug in a MIDI keyboard or let the microphone listen to your piano. Add9 chords come in the level "Sixth & Add Chords".
Play the demoCommon questions
What notes are in the Fadd9 chord?
Fadd9 has 4 notes: F, A, C and G. Formula 1 3 5 9.
What is the difference between Fadd9 and F?
F is F A C. To get Fadd9, add G, the 9th, an octave plus a whole step above F.
Where is Fadd9 used?
Fadd9 fits wherever F fits: F major, C major and Bb major. Pop and worship songs use it in place of plain F to make a simple progression sound fuller.
Can I practise Fadd9 with a MIDI keyboard or a real piano?
Yes. In ChordRunner a USB MIDI keyboard is detected automatically, and an acoustic or digital piano works through the microphone. The game checks that F, A, C and G sound together.
Your instrument is the controller.
ChordRunner is a browser game that teaches piano and guitar chords: a chord appears on screen, you play it on a real instrument, and your runner jumps. MIDI keyboard or microphone, both work.
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