Super Simple Chords

Piano chords · Pop heartbeat

Don’t Know Why: easy piano accompaniment in letter notes

By Norah Jones

  • Bb major
  • 4/4
  • 84 BPM
  • 2002
  • Easy
Tuning the piano…
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Left hand Drowsy heartbeatRight hand Double-clap chordsChords worked out from the notes of the famous part

The accompaniment with every note named, bar by bar: the bar sheet shows each note as a bar on the staff with its letter inside, so you can accompany Don’t Know Why without reading music. The left hand plays drowsy heartbeat (root bass · 1 · 3 · 4&) and the right hand double-clap chords.

The main tune of Don’t Know Why in letter notes

The real notes from a score, both hands, bar by bar. R is the right hand, L the left; C4 is middle C.

Bar 1
Bb
RBb3 D4 D4+A4 F4
LBb1 Bb1
Bar 2
Eb → D
REb4 Bb3+D4+G4 Gb4 Bb3 F#4 F4
LEb2 D2 F#2
Bar 3
Gm → Cm
RBb3 F4 Bb3+E4 Bb3 E4 Eb4
LG2 C2
Bar 4
Gm7 → Bb
RBb3 Bb3+D4 D4 F3
LF2 F2 Bb1 F2

Don’t Know Why accompaniment in letter notes

The Bb – Eb – D – Gm – Cm – Gm7 – Bb loop with drowsy heartbeat in the left hand and double-clap chords in the right. Notes struck together are joined with a plus; C4 is middle C.

Bar 1
Bb
RF4+Bb4+D5 F4+Bb4+D5 F4+Bb4+D5 F4+Bb4+D5
LBb2 Bb3 Bb2
Bar 2
Eb → D
RBb4+Eb5+G5 Bb4+Eb5+G5 A4+D5+F#5 A4+D5+F#5
LEb2 D3 D2
Bar 3
Gm → Cm
RD5+G5+Bb5 D5+G5+Bb5 G4+C5+Eb5 G4+C5+Eb5
LG2 C4 C3
Bar 4
Gm7 → Bb
RD5+G5+Bb5 D5+G5+Bb5 Eb4 F4 G4 A4 Bb4 C5 D5 Eb5
LG2 Bb3 Bb2
Bar 5
Bb
RF4+Bb4+D5 F4+Bb4+D5 F4+Bb4+D5 F4+Bb4+D5
LBb2 Bb3 Bb2
Bar 6
Eb → D
RBb4+Eb5+G5 Bb4+Eb5+G5 A4+D5+F#5 A4+D5+F#5
LEb2 D3 D2
Bar 7
Gm → Cm
RD5+G5+Bb5 D5+G5+Bb5 G4+C5+Eb5 G4+C5+Eb5
LG2 C4 C3
Bar 8
Gm7 → Bb
RD5+G5+Bb5 D5+G5+Bb5 F4+Bb4+D5 F4+Bb4+D5
LG2 Bb3 Bb2

How to read the bar sheet

The player above shows the treble staff (right hand) over the bass staff (left hand). Every note is a bar as long as it sounds, at its place on the staff, with its name inside, and the music scrolls past a line that marks now. The chord names run along the top.

Start with the left hand alone at a slow speed, then the right, then both. When the letters feel easy, try the sheet music.

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Questions about Don’t Know Why

What are the letter notes for the Don’t Know Why piano accompaniment?

Bar by bar, both hands: the bar sheet on this page names every note of the accompaniment (C4 is middle C) and plays along. The loop is Bb – Eb – D – Gm – Cm – Gm7 – Bb, so the letters repeat with the chords.

What chords are in Don’t Know Why?

The loop is Bb – Eb – D – Gm – Cm – Gm7 – Bb (I – IV – III – vi – ii – vi7 – I) in Bb major, and the song ends on C7 – F7 – Bb.

What key is Don’t Know Why in?

Bb major, at about 84 beats a minute in 4/4.

What does the left hand play in Don’t Know Why?

Drowsy heartbeat: root bass · 1 · 3 · 4&, an easy pattern. It follows the chords, so the same shape works for every bar.

Is Don’t Know Why easy to play on piano?

Yes. Both hands play easy patterns over 7 chords. Learn the chords first, then add one hand at a time.

Can I hear the real melody of Don’t Know Why?

Yes: "The part you know" plays the main tune of the song from a score, with both hands.

Made from 8 arrangements of this song: the left and right hands are the patterns these scores repeat most.