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Questions about this song
Answers from our automatic transcription. Key, tempo and chord labels may contain errors.
What key is One Time by Justin Bieber in?
This transcription starts in E major.
What tempo is One Time?
The estimated tempo is 73 BPM, calculated from the median spacing between detected beats. This is a summary of the transcription; timing can vary during the song.
What are the main chord progressions in One Time?
Recurring four-chord sequences in this transcription include C♯m → A → B → E (26 occurrences); E → C♯m → A → E (2 occurrences). These are exact chord-label matches within sections, not a complete harmonic analysis.
What are the relative chords in One Time?
Recurring relative progressions include vi → IV → V → I in E major; I → vi → IV → I in E major. Numerals refer to the key active at that point; uppercase means major and lowercase means minor. Minor keys use natural-minor scale degrees.
Does One Time use a well-known chord progression?
The transcription contains repeated matches to the doo-wop progression (I → vi → IV → V). Added tones and inversions may vary. This identifies a familiar pattern, not a claim about the song’s influences.
What time signature is One Time in?
The transcription starts in 2/4.
How is One Time structured?
The detected sections are intro (0:00) → verse (0:20) → pre-chorus (0:33) → chorus (0:46) → verse (1:12) → chorus (1:39) → bridge (2:05) → chorus (2:31) → outro (2:58).
How long is this version of One Time?
The transcribed version lasts 3:35. Other recordings or edits may have a different duration.