Old Days by Chicago
Piano chords, voicings & structure breakdown · 37 steps · 18 unique chords · 1970s
Em
Whole song transcribed by
Harmonic Analysis & Structure
Overview
Key: C major · Chords used: 18 · Sections: 6
Form: Intro → Verse → Interlude → Intro → Verse → 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
Intro 1
- Em – Dm – F – Em – G – G/A – Em – Dm – F – Em – G
iii – ii – IV – iii – V – V (bass A) – iii – ii – IV – iii – V
Verse 1
- C – Em7 – F69 – C – Dm7 – F – G7 (×2)
I – iii7 – IV69 – I – ii7 – IV – V7 - Dm7 – G7 (×3)
ii7 – V7 - Dm7 – E7sus4 – E7
ii7 – III7sus4 – III7 - Am – E7/G♯ – G6 – D7/F♯ (×2)
vi – III⁶₅ – V6 – II⁶₅
Interlude
- F – Am7 (×2)
IV – vi7 - Dm7 – Em7 – F – G7sus4 – G6
ii7 – iii7 – IV – V7sus4 – V6
Intro 2
Same chords as Intro 1.
Verse 2
Same chords as Verse 1.
Chorus
- F – Em – G (×16)
IV – iii – V
Chord vocabulary
| Chord | Roman numeral | Role | Heard in |
|---|---|---|---|
| Em | iii | In the key | Intro, Chorus |
| Dm | ii | In the key | Intro |
| F | IV | In the key | Intro, Verse, Interlude, Chorus |
| G | V | In the key | Intro, Chorus |
| G/A | V (bass A) | In the key | Intro |
| C | I | Home chord (tonic) | Verse |
| Em7 | iii7 | In the key | Verse, Interlude |
| F69 | IV69 | In the key | Verse |
| Dm7 | ii7 | In the key | Verse, Interlude |
| G7 | V7 | In the key | Verse |
| E7sus4 | III7sus4 | In the key | Verse |
| E7 | III7 | Secondary dominant (V/vi) | Verse |
| Am | vi | In the key | Verse |
| E7/G♯ | III⁶₅ | Outside the key (chromatic) | Verse |
| G6 | V6 | In the key | Verse, Interlude |
| D7/F♯ | II⁶₅ | Outside the key (chromatic) | Verse |
| Am7 | vi7 | In the key | Interlude |
| G7sus4 | V7sus4 | In the key | Interlude |
Harmonic highlights
- E7 acts as V/vi: it resolves to Am.
Sources & accuracy
- Chords and sections: the McGill Billboard Project (Burgoyne, Wild & Fujinaga, 2011). Expert transcription by trained musicians (song 0445, 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 0445, CC0), via ChoCo.
All Piano Voicings
| # | Section | Chord | Left hand | Right hand | Sources |
|---|---|---|---|---|---|
| 1 | Intro 1 | Em | E2, B2 | B3, E4, G4 | — |
| 2 | Intro 1 | Dm | D2, A2 | A3, D4, F4 | — |
| 3 | Intro 1 | F | F2, C3 | A3, C4, F4 | — |
| 4 | Intro 1 | Em | E2, B2 | G3, B3, E4 | — |
| 5 | Intro 1 | G | G2, D3 | G3, B3, D4 | — |
| 6 | Intro 1 | G/A | A2 | G3, B3, D4 | — |
| 7 | Intro 1 | Em | E2, B2 | G3, B3, E4 | — |
| 8 | Intro 1 | Dm | D2, A2 | A3, D4, F4 | — |
| 9 | Intro 1 | F | F2, C3 | A3, C4, F4 | — |
| 10 | Intro 1 | Em | E2, B2 | G3, B3, E4 | — |
| 11 | Intro 1 | G | G2, D3 | G3, B3, D4 | — |
| 12 | Verse 1, part 1 (×2) | C | C2, G2 | G3, C4, E4 | — |
| 13 | Verse 1, part 1 (×2) | Em7 | E2, B2 | G3, B3, D4 | — |
| 14 | Verse 1, part 1 (×2) | F69 | F2, C3 | G3, A3, C4, D4 | — |
| 15 | Verse 1, part 1 (×2) | C | C2, G2 | G3, C4, E4 | — |
| 16 | Verse 1, part 1 (×2) | Dm7 | D2, A2 | A3, C4, F4 | — |
| 17 | Verse 1, part 1 (×2) | F | F2, C3 | A3, C4, F4 | — |
| 18 | Verse 1, part 1 (×2) | G7 | G2, D3 | B3, D4, F4 | — |
| 19 | Verse 1, part 2 (×3) | Dm7 | D2, A2 | A3, C4, F4 | — |
| 20 | Verse 1, part 2 (×3) | G7 | G2, D3 | B3, D4, F4 | — |
| 21 | Verse 1, part 3 | Dm7 | D2, A2 | A3, C4, F4 | — |
| 22 | Verse 1, part 3 | E7sus4 | E2, B2 | A3, B3, D4 | — |
| 23 | Verse 1, part 3 | E7 | E2, B2 | G♯3, B3, D4 | — |
| 24 | Verse 1, part 4 (×2) | Am | A2, E3 | A3, C4, E4 | — |
| 25 | Verse 1, part 4 (×2) | E7/G♯ | G♯2 | G♯3, B3, D4, E4 | — |
| 26 | Verse 1, part 4 (×2) | G6 | G2, D3 | B3, D4, E4 | — |
| 27 | Verse 1, part 4 (×2) | D7/F♯ | F♯2 | A3, C4, D4, F♯4 | — |
| 28 | Interlude, part 1 (×2) | F | F2, C3 | A3, C4, F4 | — |
| 29 | Interlude, part 1 (×2) | Am7 | A2, E3 | G3, C4, E4 | — |
| 30 | Interlude, part 2 | Dm7 | D2, A2 | A3, C4, F4 | — |
| 31 | Interlude, part 2 | Em7 | E2, B2 | B3, D4, G4 | — |
| 32 | Interlude, part 2 | F | F2, C3 | C4, F4, A4 | — |
| 33 | Interlude, part 2 | G7sus4 | G2, D3 | D4, F4, C5 | — |
| 34 | Interlude, part 2 | G6 | G2, D3 | D4, E4, B4 | — |
| 35 | Chorus (×16) | F | F2, C3 | C4, F4, A4 | — |
| 36 | Chorus (×16) | Em | E2, B2 | B3, E4, G4 | — |
| 37 | Chorus (×16) | G | G2, D3 | B3, D4, G4 | — |