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Play One Time on your own piano
Plug in your piano by USB or Bluetooth. The song waits for you until you hit the right notes. Slow it down, loop any bars, play one hand at a time.
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- 3Connect your keyboard. By USB or Bluetooth, and play along.
One Time — Falling Notes Piano Tutorial
About “One Time”
Watch "One Time" by Justin Bieber in falling notes style — like Synthesia. Color-coded notes fall onto the keyboard in real time. Practice left hand, right hand, or both. Key of F, 90 BPM.
4 people have learned this song
Lyrics
Ay,
ay,
ay,
ay,
ay,
ay,
ay,
ay.
Me plus you.
(Csus)Me plus you.
(Dm)Me plus you.
One time,
one time.
When I met you, (Bb)girl, my heart went knock knock.
Now them but ter (F)flies in my stom ach won’t stop (F)stop.
And e ven though (Bb)it’s a strug gle, love is all we got; so we gon’ keep (F)keep climb in’ to the moun tain (F)top.
(Ee (Dm)yo.)
Your (Bb)world
is my world,
and my (F)fight
is your (C)fight,
and my (Bb)breath
is your breath,
and your (F)heart...
And now (C)you’re my (Dm)one love,
(Bb)my one heart,
my (Csus)one life (F)for sure.
Let me tell you (C)one (Dm)time,
I’m a tell you one (Csus)time.
And I’m a (C)be your (Dm)one guy; you’ll (Bb)be my num ber one girl, al ways (Csus)mak ing time (F)for you.
I’m a tell you (C)one (Dm)time,
I’m a tell you one (F)time:
girl I love you.
You look so deep; (Bb)you know that it hum bles me.
You’re by my side, (F)them trou bles, them not trou ble (F)me.
Man y have called (Bb)but the cho sen is you.
(C)What ev er you want, shaw (F)ty, I give it to
(Dm)you.
Your (Bb)world love you.
(CN.C.)Shaw ty right there;
she’s got ev ’ry thing I need.
And I’m a tell you one time,
(One time.)
give you ev ’ry thing you need,
down to my last dime.
(Dm)She makes me (Edim)hap
py.
(F)I know where (Gm7)I’ll
be,
(Dm)right by your (Bb6)side;
’cause
(C)she is the (F)one.
And, girl, you’re my (Dm)one love,
(Bb)my one heart,
my (Csus)one life (F)for sure.
Let me tell you (C)one (Dm)time,
I’m a tell you one (Csus)time.
And I’m a (C)be your (Dm)one guy; you’ll (Bb)be my num ber one girl, al ways (Csus)mak ing time (F)for you.
I’m a tell you (C)one (Dm)time,
I’m a tell you one (F)time:
girl, I love you.
And (Dm)me plus you,
(Csus)me plus you,
(Dm)me plus you,
one time,
one time.
Practice tip
Tip: Start at 50% speed to get comfortable with the fingering, then work your way up to full tempo.
Questions about this song (9)
- Can I learn "One Time" with falling notes like Synthesia?
- Yes — Falling Notes mode shows colored note shapes dropping onto a virtual keyboard, the same visual style as Synthesia or piano-tile games. Each note's column matches the piano key you press. Works for "One Time" with hands-separate practice in F at 90 BPM.
- What key is "One Time" by Justin Bieber played in?
- One Time is arranged in the key of F on Super Simple Piano. You can transpose to any other key live in the player.
- What's the tempo (BPM) of "One Time"?
- The arrangement plays at 90 BPM. Use the speed control (10-200%) to practice slower or play faster.
- Is "One Time" easy to play on piano?
- Yes — this is one of our beginner-friendly arrangements with simplified chords and color-coded notes.
- Can I download sheet music for "One Time"?
- Yes — registered users can download PDF sheet music, plus MIDI and MusicXML files for use in other notation software.
- Who composed "One Time"?
- "One Time" was originally performed by Justin Bieber. The Super Simple Piano arrangement is simplified for beginner-to-intermediate players.
- What other songs by Justin Bieber can I play here?
- Try "FALL", "DIE IN YOUR ARMS", "U SMILE". All are in our player with color-coded notes; pick the one matching your level.
- Can I practice left and right hand separately for "One Time"?
- Yes! Our Top Down mode lets you isolate the left hand (bass clef), right hand (treble clef), or play both together. This makes it easy to master "One Time" one hand at a time before combining them.
- What is falling notes style for "One Time"?
- Falling notes (also known as Synthesia or piano waterfall) shows color-coded rectangles falling from the top of the screen onto a virtual keyboard. Each note's position matches the piano key you need to press. "One Time" is in the key of F at 90 BPM.
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