Ten Percent by Double Exposure
Piano chords, voicings & structure breakdown · 22 steps · 10 unique chords · 1970s
G9sus4
Whole song transcribed by
Harmonic Analysis & Structure
Overview
Key: C major · Chords used: 10 · Sections: 6
Form: Instrumental → Verse → Chorus → Verse → Chorus → Chorus
Where these chords come from: an expert transcription of the original recording made for the McGill Billboard Project (Burgoyne, Wild & Fujinaga, 2011). This page shows that transcription as-is: the analysis below is generated directly from it by code, not written by AI. Consecutive repeats of a chord are shown once, and the piano voicings are our playable arrangement of each chord symbol, not a note-for-note transcription.
Section by section
Instrumental
- G9sus4 – A♭maj9 – B♭ – Cmaj7
V9sus4 – bVImaj9 – bVII – Imaj7
Verse 1
- C/G – G – Cmaj7 (×2)
I⁶₄ – V – Imaj7 - C7
I7 - Fmaj7 – Em7 (×2)
IVmaj7 – iii7 - Fmaj7 – D7 – G9sus4
IVmaj7 – II7 – V9sus4
Chorus 1
- G9sus4 – A♭maj9 – B♭ – Cmaj7 (×2)
V9sus4 – bVImaj9 – bVII – Imaj7
Verse 2
Same chords as Verse 1.
Chorus 2
Same chords as Chorus 1.
Chorus 3
- G9sus4 – A♭maj9 – B♭ – Cmaj7 (×2)
V9sus4 – bVImaj9 – bVII – Imaj7 - G9sus4
V9sus4
Chord vocabulary
| Chord | Roman numeral | Role | Heard in |
|---|---|---|---|
| G9sus4 | V9sus4 | In the key | Instrumental, Verse, Chorus |
| A♭maj9 | bVImaj9 | Borrowed from C minor | Instrumental, Chorus |
| B♭ | bVII | Borrowed from C minor | Instrumental, Chorus |
| Cmaj7 | Imaj7 | Home chord (tonic) | Instrumental, Verse, Chorus |
| C/G | I⁶₄ | Home chord (tonic) | Verse |
| G | V | In the key | Verse |
| C7 | I7 | Secondary dominant (V/IV) | Verse |
| Fmaj7 | IVmaj7 | In the key | Verse |
| Em7 | iii7 | In the key | Verse |
| D7 | II7 | Secondary dominant (V/V) | Verse |
Harmonic highlights
- A♭maj9 (bVImaj9) is borrowed from the parallel key, C minor.
- B♭ (bVII) is borrowed from the parallel key, C minor.
- C7 acts as V/IV: it resolves to Fmaj7.
- D7 acts as V/V: it resolves to G9sus4.
Sources & accuracy
- Chords and sections: the McGill Billboard Project (Burgoyne, Wild & Fujinaga, 2011). Expert transcription by trained musicians (song 1164, CC0), via ChoCo.
- Not verified: only one expert transcription of this song is available so far.
- Rhythm and chord durations aren't shown; each step is one chord change.
Sources & Accuracy
Every chord on this page comes from the expert transcription listed first below. Piano voicings are our arrangement of the reported chord symbols, not a note-for-note transcription.
- the McGill Billboard Project (Burgoyne, Wild & Fujinaga, 2011)Expert transcription
Annotated from the original recording by trained musicians for a published research dataset.
Expert transcription by trained musicians (song 1164, CC0), via ChoCo.
All Piano Voicings
| # | Section | Chord | Left hand | Right hand | Sources |
|---|---|---|---|---|---|
| 1 | Instrumental | G9sus4 | G2, D3 | C4, D4, F4, A4 | — |
| 2 | Instrumental | A♭maj9 | A♭2, E♭3 | C4, E♭4, G4, B♭4 | — |
| 3 | Instrumental | B♭ | B♭2, F3 | D4, F4, B♭4 | — |
| 4 | Instrumental | Cmaj7 | C2, G2 | E4, G4, B4 | — |
| 5 | Verse 1, part 1 (×2) | C/G | G2 | E4, G4, C5 | — |
| 6 | Verse 1, part 1 (×2) | G | G2, D3 | D4, G4, B4 | — |
| 7 | Verse 1, part 1 (×2) | Cmaj7 | C2, G2 | E4, G4, B4 | — |
| 8 | Verse 1, part 2 | C7 | C2, G2 | E4, G4, B♭4 | — |
| 9 | Verse 1, part 3 (×2) | Fmaj7 | F2, C3 | E4, A4, C5 | — |
| 10 | Verse 1, part 3 (×2) | Em7 | E2, B2 | D4, G4, B4 | — |
| 11 | Verse 1, part 4 | Fmaj7 | F2, C3 | E4, A4, C5 | — |
| 12 | Verse 1, part 4 | D7 | D2, A2 | F♯4, A4, C5 | — |
| 13 | Verse 1, part 4 | G9sus4 | G2, D3 | F4, A4, C5, D5 | — |
| 14 | Chorus 1 (×2) | G9sus4 | G2, D3 | F4, A4, C5, D5 | — |
| 15 | Chorus 1 (×2) | A♭maj9 | A♭2, E♭3 | G4, B♭4, C5, E♭5 | — |
| 16 | Chorus 1 (×2) | B♭ | B♭2, F3 | F4, B♭4, D5 | — |
| 17 | Chorus 1 (×2) | Cmaj7 | C2, G2 | G4, B4, E5 | — |
| 18 | Chorus 3, part 1 (×2) | G9sus4 | G2, D3 | F4, A4, C5, D5 | — |
| 19 | Chorus 3, part 1 (×2) | A♭maj9 | A♭2, E♭3 | G4, B♭4, C5, E♭5 | — |
| 20 | Chorus 3, part 1 (×2) | B♭ | B♭2, F3 | F4, B♭4, D5 | — |
| 21 | Chorus 3, part 1 (×2) | Cmaj7 | C2, G2 | G4, B4, E5 | — |
| 22 | Chorus 3, part 2 | G9sus4 | G2, D3 | F4, A4, C5, D5 | — |