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All at Once by Whitney Houston

Piano chords, voicings & structure breakdown · 62 steps · 25 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.
A SectionStep 1 of 62

B♭

LeftB♭2, F3RightB♭3, D4, F4
C4F3D4F4B♭2B♭3
Left hand Right hand Middle C (C4)

No source cited for this step

Harmonic Analysis & Structure

Overview

Key: B♭ major · Chords used: 25 · Sections: 3

Form: 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

A Section

  • B♭ – Dm/A – Gm – B♭/F – Cm/E♭ – F – Dm – Gm – Cm – F7 – B♭maj7 – Cm – F – B♭ – Dm/A – Gm – B♭/F – Cm/E♭ – F – Dm – Gm – Cm – F7 – B♭maj7
    I – iii⁶₄ – vi – I⁶₄ – ii⁶ – V – iii – vi – ii – V7 – Imaj7 – ii – V – I – iii⁶₄ – vi – I⁶₄ – ii⁶ – V – iii – vi – ii – V7 – Imaj7

B Section

  • E♭ – B♭ – Cm – D7 – Gm – F – E♭ – B♭ – Cm – F – A♭
    IV – I – ii – III7 – vi – V – IV – I – ii – V – bVII

C Section

  • D♭ – B♭m – E♭m – A♭ – Fm – B♭m – G♭ – A♭ – D♭ – B♭ – E♭m – A♭ – Fm – B♭m
    bIII – i – iv – bVII – v – i – bVI – bVII – bIII – I – iv – bVII – v – i
  • G♭ – E♭m (×2)
    bVI – iv
  • D♭ – Cm – F7
    bIII – ii – V7
  • D – Bm – Em – A – F♯m – B – G – A (×2)
    III – #i – #iv – VII – #v – #I – VI – VII

Chord vocabulary

ChordRoman numeralRoleHeard in
B♭IHome chord (tonic)A Section, B Section, C Section
Dm/Aiii⁶₄In the keyA Section
GmviIn the keyA Section, B Section
B♭/FI⁶₄Home chord (tonic)A Section
Cm/E♭ii⁶In the keyA Section
FVIn the keyA Section, B Section
DmiiiIn the keyA Section
CmiiIn the keyA Section, B Section, C Section
F7V7In the keyA Section, C Section
B♭maj7Imaj7Home chord (tonic)A Section
E♭IVIn the keyB Section
D7III7Secondary dominant (V/vi)B Section
A♭bVIIBorrowed from B♭ minorB Section, C Section
D♭bIIIBorrowed from B♭ minorC Section
B♭miBorrowed from B♭ minorC Section
E♭mivBorrowed from B♭ minorC Section
FmvBorrowed from B♭ minorC Section
G♭bVIBorrowed from B♭ minorC Section
DIIIOutside the key (chromatic)C Section
Bm#iOutside the key (chromatic)C Section
Em#ivOutside the key (chromatic)C Section
AVIIOutside the key (chromatic)C Section
F♯m#vOutside the key (chromatic)C Section
B#IOutside the key (chromatic)C Section
GVIOutside the key (chromatic)C Section

Harmonic highlights

  • A♭ (bVII) is borrowed from the parallel key, B♭ minor.
  • D♭ (bIII) is borrowed from the parallel key, B♭ minor.
  • B♭m (i) is borrowed from the parallel key, B♭ minor.
  • E♭m (iv) is borrowed from the parallel key, B♭ minor.
  • Fm (v) is borrowed from the parallel key, B♭ minor.
  • G♭ (bVI) is borrowed from the parallel key, B♭ minor.
  • D7 acts as V/vi: it resolves to Gm.

Sources & accuracy

  • Chords: the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). Community chord chart “All at Once” (credited “Houston Whitney”, style Pop Ballad) 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.
  • 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 “All at Once” (credited “Houston Whitney”, style Pop Ballad) from the forum file linked here, CC BY 4.0 via ChoCo. Performer/songwriter confirmed from Wikidata.

All Piano Voicings

#SectionChordLeft handRight handSources
1A SectionB♭B♭2, F3B♭3, D4, F4—
2A SectionDm/AA2A3, D4, F4—
3A SectionGmG2, D3B♭3, D4, G4—
4A SectionB♭/FF2B♭3, D4, F4—
5A SectionCm/E♭E♭2C4, E♭4, G4—
6A SectionFF2, C3C4, F4, A4—
7A SectionDmD2, A2D4, F4, A4—
8A SectionGmG2, D3D4, G4, B♭4—
9A SectionCmC2, G2E♭4, G4, C5—
10A SectionF7F2, C3E♭4, A4, C5—
11A SectionB♭maj7B♭2, F3F4, A4, D5—
12A SectionCmC2, G2E♭4, G4, C5—
13A SectionFF2, C3F4, A4, C5—
14A SectionB♭B♭2, F3F4, B♭4, D5—
15A SectionDm/AA2F4, A4, D5—
16A SectionGmG2, D3G4, B♭4, D5—
17A SectionB♭/FF2F4, B♭4, D5—
18A SectionCm/E♭E♭2G4, C5, E♭5—
19A SectionFF2, C3F4, A4, C5—
20A SectionDmD2, A2F4, A4, D5—
21A SectionGmG2, D3G4, B♭4, D5—
22A SectionCmC2, G2G4, C5, E♭5—
23A SectionF7F2, C3A4, C5, E♭5—
24A SectionB♭maj7B♭2, F3F4, A4, D5—
25B SectionE♭E♭2, B♭2G4, B♭4, E♭5—
26B SectionB♭B♭2, F3F4, B♭4, D5—
27B SectionCmC2, G2G4, C5, E♭5—
28B SectionD7D2, A2F♯4, A4, C5—
29B SectionGmG2, D3G4, B♭4, D5—
30B SectionFF2, C3F4, A4, C5—
31B SectionE♭E♭2, B♭2E♭4, G4, B♭4—
32B SectionB♭B♭2, F3D4, F4, B♭4—
33B SectionCmC2, G2E♭4, G4, C5—
34B SectionFF2, C3F4, A4, C5—
35B SectionA♭A♭2, E♭3E♭4, A♭4, C5—
36C Section, part 1D♭D♭2, A♭2F4, A♭4, D♭5—
37C Section, part 1B♭mB♭2, F3F4, B♭4, D♭5—
38C Section, part 1E♭mE♭2, B♭2G♭4, B♭4, E♭5—
39C Section, part 1A♭A♭2, E♭3A♭4, C5, E♭5—
40C Section, part 1FmF2, C3F4, A♭4, C5—
41C Section, part 1B♭mB♭2, F3F4, B♭4, D♭5—
42C Section, part 1G♭G♭2, D♭3G♭4, B♭4, D♭5—
43C Section, part 1A♭A♭2, E♭3E♭4, A♭4, C5—
44C Section, part 1D♭D♭2, A♭2F4, A♭4, D♭5—
45C Section, part 1B♭B♭2, F3F4, B♭4, D5—
46C Section, part 1E♭mE♭2, B♭2G♭4, B♭4, E♭5—
47C Section, part 1A♭A♭2, E♭3A♭4, C5, E♭5—
48C Section, part 1FmF2, C3F4, A♭4, C5—
49C Section, part 1B♭mB♭2, F3F4, B♭4, D♭5—
50C Section, part 2 (×2)G♭G♭2, D♭3G♭4, B♭4, D♭5—
51C Section, part 2 (×2)E♭mE♭2, B♭2G♭4, B♭4, E♭5—
52C Section, part 3D♭D♭2, A♭2F4, A♭4, D♭5—
53C Section, part 3CmC2, G2E♭4, G4, C5—
54C Section, part 3F7F2, C3E♭4, A4, C5—
55C Section, part 4 (×2)DD2, A2F♯4, A4, D5—
56C Section, part 4 (×2)BmB1, F♯2F♯4, B4, D5—
57C Section, part 4 (×2)EmE2, B2G4, B4, E5—
58C Section, part 4 (×2)AA2, E3A4, C♯5, E5—
59C Section, part 4 (×2)F♯mF♯2, C♯3F♯4, A4, C♯5—
60C Section, part 4 (×2)BB1, F♯2F♯4, B4, D♯5—
61C Section, part 4 (×2)GG2, D3G4, B4, D5—
62C Section, part 4 (×2)AA2, E3E4, A4, C♯5—