# Only One – BoA: piano chords

Only One by BoA uses 4 chords in C major; difficulty on the piano: easy.

## Chords in the song

[F](https://pianokitty.com/c/Fmaj), [G](https://pianokitty.com/c/Gmaj), [Em](https://pianokitty.com/c/Em), [Am](https://pianokitty.com/c/Am)

## Chord sheet

- Chords in the song: F G Em Am F G Em Am F G Em Am F G Em Am F G Em Am F G Em Am F G Em Am F G Em Am F G Em Am F G Em Am F G Em Am F G Em Am F G Em Am

## Questions

### Which chords does Only One by BoA use?

Different chords: 4. They are all in the list under “Chords in the song”.

### What key is Only One by BoA in?

The chords fit C major. This is estimated from the chords, so the recording may be in another key.

### How hard is Only One to play on the piano?

Difficulty: easy. The rating counts the different chords (4), 7th and extended chords, and chords with another bass note.

[Practice this song](https://pianokitty.com/app?subject=songs&spec=F+G+Em+Am+F+G+Em+Am+F+G+Em+Am+F+G+Em+Am+F+G+Em+Am+F+G+Em+Am+F+G+Em+Am+F+G+Em+Am+F+G+Em+Am+F+G+Em+Am+F+G+Em+Am+F+G+Em+Am+F+G+Em+Am&seq=inOrder&title=BoA+-+Only+One)

[Piano chords for popular songs](https://pianokitty.com/songs/browse)

Chord data: [Chordonomicon](https://huggingface.co/datasets/ailsntua/Chordonomicon), [CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/). Chords are transcriptions and can differ from the recording.

https://pianokitty.com/songs/boa/only-one