PianoChords.studio

When October Goes by Johnny Mercer

Piano chords, voicings & structure breakdown · 115 steps · 46 unique chords

Community chart. These chords come from a chart a musician wrote and shared on the iReal Pro forums, not from a transcription checked against the recording. Charts are sometimes written in a different key or simplified, and no second chart of this song agreed closely enough to mark this page verified. Trust your ears.
IntroStep 1 of 115

Fm7

LeftF2, C3RightC4, E♭4, A♭4
F2C3C4E♭4A♭4
Left hand Right hand Middle C (C4)

No source cited for this step

Harmonic Analysis & Structure

Overview

Key: E♭ major · Chords used: 46 · Sections: 4

Form: Intro → A Section → B Section → C Section

Where these chords come from: a chord chart of this song written by a musician and shared on the iReal Pro forums, archived in the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). It's one musician's reading of the song, not a transcription checked against the recording. This page shows that chart 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

  • Fm7 – D♭maj7 – G♭7 – G7sus4 – C9
    ii7 – bVIImaj7 – bIII7 – III7sus4 – VI9

A Section

  • Fm7 – B♭7♭5 – B7♭9 – E♭7sus4 – E♭maj7 – A♭maj7 – Dm7♭5 – Dm/G – G7♭9 – C7sus4 – C7 – C7♭9 – Fm7 – A♭/B♭ – B♭7/A♭ – G7sus4 – G7 – Gm7♭5 – C7♭9 – D♭maj7 – G7sus4 – G7 – C7♭9 – Fm7 – B♭7♭5 – B7♭9 – E♭7sus4 – E♭maj7 – A♭maj7 – Dm7♭5 – Dm/G – G7♭9 – C7sus4 – C7 – C7♭9 – Fm7 – A♭/B♭ – B♭7/A♭ – G7sus4 – G7 – C7♭9 – Fm7 – Gm7 – Amaj7 – A♭/B♭ – E♭
    ii7 – V7♭5 – #V7b9 – I7sus4 – Imaj7 – IVmaj7 – viiø7 – vii (bass G) – III7b9 – VI7sus4 – VI7 – VI7b9 – ii7 – IV (bass B♭) – V⁴₂ – III7sus4 – III7 – iiiø7 – VI7b9 – bVIImaj7 – III7sus4 – III7 – VI7b9 – ii7 – V7♭5 – #V7b9 – I7sus4 – Imaj7 – IVmaj7 – viiø7 – vii (bass G) – III7b9 – VI7sus4 – VI7 – VI7b9 – ii7 – IV (bass B♭) – V⁴₂ – III7sus4 – III7 – VI7b9 – ii7 – iii7 – #IVmaj7 – IV (bass B♭) – I

B Section

  • D7♭9 – Gm7 – C7♭9 – C9 – Fsus4 – B♭maj7 – Em7♭5 – A7♭5 – Dsus4 – D7 – D7♭9 – Gm7 – C7♭9 – C/B♭ – A7sus4 – A7 – Am7♭5 – D7♭9 – E♭maj7 – A7sus4 – A7 – D7♭9
    VII7b9 – iii7 – VI7b9 – VI9 – IIsus4 – Vmaj7 – #iø7 – #IV7♭5 – VIIsus4 – VII7 – VII7b9 – iii7 – VI7b9 – VI (bass B♭) – #IV7sus4 – #IV7 – #ivø7 – VII7b9 – Imaj7 – #IV7sus4 – #IV7 – VII7b9

C Section

  • Gm7 – C7♭9 – C9 – Fsus4 – B♭maj7 – Em7♭5 – A7♭9 – Dsus4 – D7 – D7♭9 – Gm – Gm7 – B♭/C – C/B♭ – A7sus4 – A7 – D7♭9 – Gm7 – Am7 – B♭maj7 – B♭/C – Dm7 – Dm7/C – Dm7/B – Gm7 – B♭/C – A7sus4 – A7 – Dm7 – Dm7/C – Dm7/B – Gm7 – Am7 – B♭maj7 – B♭/C – Dm – Dm/C – Dm/B – Dm/B♭ – Gm7 – Gm/A – Dm
    iii7 – VI7b9 – VI9 – IIsus4 – Vmaj7 – #iø7 – #IV7b9 – VIIsus4 – VII7 – VII7b9 – iii – iii7 – V (bass C) – VI (bass B♭) – #IV7sus4 – #IV7 – VII7b9 – iii7 – #iv7 – Vmaj7 – V (bass C) – vii7 – vii⁴₂ – vii7 (bass B) – iii7 – V (bass C) – #IV7sus4 – #IV7 – vii7 – vii⁴₂ – vii7 (bass B) – iii7 – #iv7 – Vmaj7 – V (bass C) – vii – vii (bass C) – vii (bass B) – vii (bass B♭) – iii7 – iii (bass A) – vii

Chord vocabulary

ChordRoman numeralRoleHeard in
Fm7ii7In the keyIntro, A Section
D♭maj7bVIImaj7Outside the key (chromatic)Intro, A Section
G♭7bIII7Outside the key (chromatic)Intro
G7sus4III7sus4In the keyIntro, A Section
C9VI9Secondary dominant (V/II)B Section, C Section
B♭7♭5V7♭5Outside the key (chromatic)A Section
B7♭9#V7b9Outside the key (chromatic)A Section
E♭7sus4I7sus4Borrowed from E♭ minorA Section
E♭maj7Imaj7Home chord (tonic)A Section, B Section
A♭maj7IVmaj7In the keyA Section
Dm7♭5viiø7In the keyA Section
Dm/Gvii (bass G)Outside the key (chromatic)A Section
G7♭9III7b9Secondary dominant (V/VI)A Section
C7sus4VI7sus4In the keyA Section
C7VI7Outside the key (chromatic)A Section
C7♭9VI7b9Secondary dominant (V/ii)A Section, B Section, C Section
A♭/B♭IV (bass B♭)In the keyA Section
B♭7/A♭V⁴₂In the keyA Section
G7III7Outside the key (chromatic)A Section
Gm7♭5iiiø7Outside the key (chromatic)A Section
Gm7iii7In the keyA Section, B Section, C Section
Amaj7#IVmaj7Outside the key (chromatic)A Section
E♭IHome chord (tonic)A Section
D7♭9VII7b9Secondary dominant (V/iii)B Section, C Section
Fsus4IIsus4In the keyB Section, C Section
B♭maj7Vmaj7Outside the key (chromatic)B Section, C Section
Em7♭5#iø7Outside the key (chromatic)B Section, C Section
A7♭5#IV7♭5Outside the key (chromatic)B Section
Dsus4VIIsus4Outside the key (chromatic)B Section, C Section
D7VII7Outside the key (chromatic)B Section, C Section
C/B♭VI (bass B♭)Outside the key (chromatic)B Section, C Section
A7sus4#IV7sus4Outside the key (chromatic)B Section, C Section
A7#IV7Outside the key (chromatic)B Section, C Section
Am7♭5#ivø7Outside the key (chromatic)B Section
A7♭9#IV7b9Outside the key (chromatic)C Section
GmiiiIn the keyC Section
B♭/CV (bass C)In the keyC Section
Am7#iv7Outside the key (chromatic)C Section
Dm7vii7Outside the key (chromatic)C Section
Dm7/Cvii⁴₂Outside the key (chromatic)C Section
Dm7/Bvii7 (bass B)Outside the key (chromatic)C Section
DmviiOutside the key (chromatic)C Section
Dm/Cvii (bass C)Outside the key (chromatic)C Section
Dm/Bvii (bass B)Outside the key (chromatic)C Section
Dm/B♭vii (bass B♭)Outside the key (chromatic)C Section
Gm/Aiii (bass A)Outside the key (chromatic)C Section

Harmonic highlights

  • E♭7sus4 (I7sus4) is borrowed from the parallel key, E♭ minor.
  • C9 acts as V/II: it resolves to Fsus4.
  • G7♭9 acts as V/VI: it resolves to C7sus4.
  • C7♭9 acts as V/ii: it resolves to Fm7.
  • D7♭9 acts as V/iii: it resolves to Gm7.

Sources & accuracy

  • Chords: the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). Community chord chart “When October Goes” (credited “Johnny Mercer-Barry Manilow”, style Ballad Melodic) from the forum file linked here, CC BY 4.0 via ChoCo. Performer/songwriter confirmed from Wikidata.
  • Section names: from the chart's own markings: section names written on the chart (Intro, Verse, Chorus…) are kept, and rehearsal letters are shown as “A Section”, “B Section” and so on (the B of an AABA song is called the Bridge).
  • Chord charts are often written in a key that suits a particular singer or band, so this may not be the key of the original recording.
  • About the song: Wikipedia.
  • Not verified: only one chart of this song is available, so it hasn't been cross-checked.
  • 2 chords were simplified to the closest symbol our player supports (for example, an unusual added tone dropped).
  • Rhythm and chord durations aren't shown; each step is one chord change.

Sources & Accuracy

Every chord on this page comes from the community chart listed first below. Piano voicings are our arrangement of the reported chord symbols, not a note-for-note transcription.

  • Chords from a chart a musician wrote and shared on the iReal Pro forums (archived in the ChoCo research dataset); may be in a different key from the recording, and not checked against it.

    Community chord chart “When October Goes” (credited “Johnny Mercer-Barry Manilow”, style Ballad Melodic) from the forum file linked here, CC BY 4.0 via ChoCo. Performer/songwriter confirmed from Wikidata.

All Piano Voicings

#SectionChordLeft handRight handSources
1IntroFm7F2, C3C4, E♭4, A♭4—
2IntroD♭maj7D♭2, A♭2C4, F4, A♭4—
3IntroG♭7G♭2, D♭3D♭4, F♭4, B♭4—
4IntroG7sus4G2, D3D4, F4, C5—
5IntroC9C2, G2D4, E4, G4, B♭4—
6A SectionFm7F2, C3C4, E♭4, A♭4—
7A SectionB♭7♭5B♭2, B♭3D4, F♭4, A♭4—
8A SectionB7♭9B1, F♯2C4, D♯4, F♯4, A4—
9A SectionE♭7sus4E♭2, B♭2B♭3, D♭4, A♭4—
10A SectionE♭maj7E♭2, B♭2B♭3, D4, G4—
11A SectionA♭maj7A♭2, E♭3C4, E♭4, G4—
12A SectionDm7♭5D2, D3C4, F4, A♭4—
13A SectionDm/GG2D4, F4, A4—
14A SectionG7♭9G2, D3D4, F4, A♭4, B4—
15A SectionC7sus4C2, G2F4, G4, B♭4—
16A SectionC7C2, G2E4, G4, B♭4—
17A SectionC7♭9C2, G2D♭4, E4, G4, B♭4—
18A SectionFm7F2, C3C4, E♭4, A♭4—
19A SectionA♭/B♭B♭2C4, E♭4, A♭4—
20A SectionB♭7/A♭A♭2B♭3, D4, F4, A♭4—
21A SectionG7sus4G2, D3C4, D4, F4—
22A SectionG7G2, D3B3, D4, F4—
23A SectionGm7♭5G2, G3B♭3, D♭4, F4—
24A SectionC7♭9C2, G2B♭3, D♭4, E4, G4—
25A SectionD♭maj7D♭2, A♭2C4, F4, A♭4—
26A SectionG7sus4G2, D3C4, D4, F4—
27A SectionG7G2, D3B3, D4, F4—
28A SectionC7♭9C2, G2B♭3, D♭4, E4, G4—
29A SectionFm7F2, C3C4, E♭4, A♭4—
30A SectionB♭7♭5B♭2, B♭3D4, F♭4, A♭4—
31A SectionB7♭9B1, F♯2C4, D♯4, F♯4, A4—
32A SectionE♭7sus4E♭2, B♭2B♭3, D♭4, A♭4—
33A SectionE♭maj7E♭2, B♭2B♭3, D4, G4—
34A SectionA♭maj7A♭2, E♭3C4, E♭4, G4—
35A SectionDm7♭5D2, D3C4, F4, A♭4—
36A SectionDm/GG2D4, F4, A4—
37A SectionG7♭9G2, D3D4, F4, A♭4, B4—
38A SectionC7sus4C2, G2F4, G4, B♭4—
39A SectionC7C2, G2E4, G4, B♭4—
40A SectionC7♭9C2, G2D♭4, E4, G4, B♭4—
41A SectionFm7F2, C3C4, E♭4, A♭4—
42A SectionA♭/B♭B♭2C4, E♭4, A♭4—
43A SectionB♭7/A♭A♭2B♭3, D4, F4, A♭4—
44A SectionG7sus4G2, D3C4, D4, F4—
45A SectionG7G2, D3B3, D4, F4—
46A SectionC7♭9C2, G2B♭3, D♭4, E4, G4—
47A SectionFm7F2, C3C4, E♭4, A♭4—
48A SectionGm7G2, D3B♭3, D4, F4—
49A SectionAmaj7A2, E3G♯3, C♯4, E4—
50A SectionA♭/B♭B♭2A♭3, C4, E♭4—
51A SectionE♭E♭2, B♭2G3, B♭3, E♭4—
52B SectionD7♭9D2, A2F♯3, A3, C4, E♭4—
53B SectionGm7G2, D3F3, B♭3, D4—
54B SectionC7♭9C2, G2G3, B♭3, D♭4, E4—
55B SectionC9C2, G2G3, B♭3, D4, E4—
56B SectionFsus4F2, C3B♭3, C4, F4—
57B SectionB♭maj7B♭2, F3A3, D4, F4—
58B SectionEm7♭5E2, E3B♭3, D4, G4—
59B SectionA7♭5A2, A3C♯4, E♭4, G4—
60B SectionDsus4D2, A2A3, D4, G4—
61B SectionD7D2, A2A3, C4, F♯4—
62B SectionD7♭9D2, A2A3, C4, E♭4, F♯4—
63B SectionGm7G2, D3B♭3, D4, F4—
64B SectionC7♭9C2, G2B♭3, D♭4, E4, G4—
65B SectionC/B♭B♭2C4, E4, G4—
66B SectionA7sus4A2, E3D4, E4, G4—
67B SectionA7A2, E3C♯4, E4, G4—
68B SectionAm7♭5A2, A3C4, E♭4, G4—
69B SectionD7♭9D2, A2C4, E♭4, F♯4, A4—
70B SectionE♭maj7E♭2, B♭2B♭3, D4, G4—
71B SectionA7sus4A2, E3D4, E4, G4—
72B SectionA7A2, E3C♯4, E4, G4—
73B SectionD7♭9D2, A2C4, E♭4, F♯4, A4—
74C SectionGm7G2, D3D4, F4, B♭4—
75C SectionC7♭9C2, G2D♭4, E4, G4, B♭4—
76C SectionC9C2, G2D4, E4, G4, B♭4—
77C SectionFsus4F2, C3C4, F4, B♭4—
78C SectionB♭maj7B♭2, F3D4, F4, A4—
79C SectionEm7♭5E2, E3D4, G4, B♭4—
80C SectionA7♭9A2, E3C♯4, E4, G4, B♭4—
81C SectionDsus4D2, A2D4, G4, A4—
82C SectionD7D2, A2C4, F♯4, A4—
83C SectionD7♭9D2, A2C4, E♭4, F♯4, A4—
84C SectionGmG2, D3B♭3, D4, G4—
85C SectionGm7G2, D3B♭3, D4, F4—
86C SectionB♭/CC2B♭3, D4, F4—
87C SectionC/B♭B♭2C4, E4, G4—
88C SectionA7sus4A2, E3D4, E4, G4—
89C SectionA7A2, E3C♯4, E4, G4—
90C SectionD7♭9D2, A2C4, E♭4, F♯4, A4—
91C SectionGm7G2, D3D4, F4, B♭4—
92C SectionAm7A2, E3C4, E4, G4—
93C SectionB♭maj7B♭2, F3D4, F4, A4—
94C SectionB♭/CC2D4, F4, B♭4—
95C SectionDm7D2, A2C4, F4, A4—
96C SectionDm7/CC2C4, D4, F4, A4—
97C SectionDm7/BB1C4, D4, F4, A4—
98C SectionGm7G2, D3D4, F4, B♭4—
99C SectionB♭/CC2D4, F4, B♭4—
100C SectionA7sus4A2, E3D4, E4, G4—
101C SectionA7A2, E3C♯4, E4, G4—
102C SectionDm7D2, A2C4, F4, A4—
103C SectionDm7/CC2C4, D4, F4, A4—
104C SectionDm7/BB1C4, D4, F4, A4—
105C SectionGm7G2, D3D4, F4, B♭4—
106C SectionAm7A2, E3C4, E4, G4—
107C SectionB♭maj7B♭2, F3D4, F4, A4—
108C SectionB♭/CC2D4, F4, B♭4—
109C SectionDmD2, A2D4, F4, A4—
110C SectionDm/CC2D4, F4, A4—
111C SectionDm/BB1D4, F4, A4—
112C SectionDm/B♭B♭2D4, F4, A4—
113C SectionGm7G2, D3D4, F4, B♭4—
114C SectionGm/AA2D4, G4, B♭4—
115C SectionDmD2, A2D4, F4, A4—