Piano chords · Pop heartbeat
I Knew You Were Trouble: piano accompaniment sheet music
By Taylor Swift
- G major
- 4/4
- 150 BPM
- 2012
- Medium
Play the full song with sheet music
I Knew You Were Trouble written out as piano music: the vi – IV – V – I – V loop in G major for both hands, with chord names and finger numbers. Press play and follow the cursor. The left hand plays eager heartbeat (root bass · pop push 1 · 2 · 2& · 3& · 4) and the right hand pony-trot chords.
I Knew You Were Trouble chord chart
The loop once round, bar by bar, in G major. The roman numeral says the chord's place in the key, so the same chart works in any key.
| Bar | Chord | Numeral | Notes |
|---|---|---|---|
| 1 | Em | vi | E G B |
| 2 | C | IV | C E G |
| 3 | D | V | D F# A |
| 4 | G | I | G B D |
| 4 | D | V | D F# A |
What the sheet music shows
The grand staff: the right hand on the treble staff, the left hand on the bass staff, with the chord names above and a finger number on each note (1 is the thumb). It is the accompaniment: eager heartbeat (root bass · pop push 1 · 2 · 2& · 3& · 4) in the left hand and pony-trot chords in the right, over the Em – C – D – G – D chords.
Press play and a cursor follows the music. Above it, Colours paints each note in its key’s colour and Note names writes its letter on its head.
To see the real melody written out, play “The part you know”: the sheet music changes to it.
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Questions about I Knew You Were Trouble
Does the sheet music for I Knew You Were Trouble have finger numbers?
Yes: every note of both hands has its finger number, 1 being the thumb. To read the notes alone, turn Fingers off above the music.
What chords are in I Knew You Were Trouble?
The loop is Em – C – D – G – D (vi – IV – V – I – V) in G major, and the song ends on C – D – G.
What key is I Knew You Were Trouble in?
G major, at about 150 beats a minute in 4/4.
What does the left hand play in I Knew You Were Trouble?
Eager heartbeat: root bass · pop push 1 · 2 · 2& · 3& · 4, an easy pattern. It follows the chords, so the same shape works for every bar.
Is I Knew You Were Trouble easy to play on piano?
It is a medium one: learn the 5 chords as blocks first, then add the left hand, then the right, slowly.
Can I hear the real melody of I Knew You Were Trouble?
Yes: "The part you know" plays the main tune of the song from a score, with both hands.
Made from 2 arrangements of this song: the left and right hands are the patterns these scores repeat most.