Chords of: One Time by: Justin Bieber. (E, C#m7, A, A6) are the main chords of the song. The chords are displayed instantly in real-time with a YouTube player, four synced views, instrument diagrams, loop practice and a built-in vocal-remover mixer.
“One Time” by Justin Bieber is in E Major and runs at about 146 BPM, giving it a fast, energetic pace. Our analysis found 30 different chords across 114 chord changes; the ones that carry the song are E, C#m7, A, A6.
E is the chord you will hold longest — roughly 42% of the 3:38 the chords were tracked for. The song opens with Bb6 → Bmaj7 → C#m → E → A6 → C#m7 → E → A. Play the timeline above to hear each change land in real time.
Difficulty: advanced — 5 main chords with 4 extended, altered or slash voicings. Guitarists can play it as written — E Major sits in open-chord territory, no capo needed.
| Chord | Time held | Share |
|---|---|---|
| E | 1:32 | 42% |
| C#m7 | 0:34 | 15% |
| A | 0:18 | 8% |
| C#m | 0:13 | 6% |
| A6 | 0:12 | 5% |
| Bb6 | 0:09 | 4% |
| Amaj7 | 0:07 | 3% |
| Bmaj7 | 0:06 | 3% |
C/Bb – Bb6 – Bmaj7 – C#m – A – E – A6 – C#m7 – E – C#m – A – E – C#m7 – A6 – E – B/C# – C#m – E – C#m7 – Amaj7 – A6 – E – C#m7 – A – E – Em6 – C#m – A6 – B6 – E – C#m7 – A – E – C#m7 – A – C#m7 – B – E – F#7 – Abm – F#m – C#m7 – Abm – E – B7 – C#m7 – A – C#m7 – …
