You Must Believe in Spring by Michel Legrand

Overview

Key: B minor · Chords used: 35 · Sections: 4

Form: A Section → B Section → C 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

• C♯m7♭5 – F♯7♭9 – F♯7♭9/B – Bm7 – Bm7/A – Gmaj7 – Gmaj7/F♯ – Em7 – A7 – A7♭9/D – Dmaj7 – G♯m7♭5 – C♯7♭9 – F♯m7♭5 – B7♭9 – Em7 – A7 – Dmaj7 – G♯aug7
  iiø7 – V7b9 – V7b9 (bass B) – i7 – i⁴₂ – bVImaj7 – bVImaj⁴₂ – iv7 – bVII7 – bVII7b9 (bass D) – bIIImaj7 – viø7 – II7b9 – vø7 – I7b9 – iv7 – bVII7 – bIIImaj7 – VI+7

B Section

• C♯m7♭5 – F♯7♭9 – F♯7♭9/B – Bm7 – Bm7/A – Gmaj7 – Gmaj7/F♯ – Em7 – A7 – A7♭9/D – Dmaj7 – G♯m7♭5 – C♯7♭9 – Gm7♭5 – C7♭9 – Fm7 – B♭7 – E♭maj7 – Aaug7
  iiø7 – V7b9 – V7b9 (bass B) – i7 – i⁴₂ – bVImaj7 – bVImaj⁴₂ – iv7 – bVII7 – bVII7b9 (bass D) – bIIImaj7 – viø7 – II7b9 – bviø7 – bII7b9 – bv7 – bI7 – bIVmaj7 – bVII+7

C Section 1

• Dm7♭5 – G7♭9 – G7♭9/C – Cm7 – Cm7/B♭ – A♭maj7 – A♭maj7/G – Fm7 – B♭7 – B♭7♭9/E♭ – E♭maj7 – Am7♭5 – D7♭9 – Gm7♭5 – C7♭9 – Fm7 – B♭7 – E♭maj7 – A♭maj7♯11 – Dm7♭5 – G7♭9 – Cm6
  biiiø7 – bVI7b9 – bVI7b9 (bass C) – bii7 – bii⁴₂ – VImaj7 – VImaj⁴₂ – bv7 – bI7 – bI7b9 (bass E♭) – bIVmaj7 – bviiø7 – bIII7b9 – bviø7 – bII7b9 – bv7 – bI7 – bIVmaj7 – VImaj7#11 – biiiø7 – bVI7b9 – bii6

C Section 2

• Dm7♭5 – G7♭9 – G7♭9/C – Cm7 – Cm7/B♭ – A♭maj7 – A♭maj7/G – Fm7 – B♭7 – B♭7♭9/E♭ – E♭maj7 – Am7♭5 – D7♭9 – Gm7♭5 – C7♭9 – Fm7 – B♭7 – E♭maj7 – A♭maj7♯11 – Dm7♭5 – G7♭9 – Cm6 – D♭7 – Cm6
  biiiø7 – bVI7b9 – bVI7b9 (bass C) – bii7 – bii⁴₂ – VImaj7 – VImaj⁴₂ – bv7 – bI7 – bI7b9 (bass E♭) – bIVmaj7 – bviiø7 – bIII7b9 – bviø7 – bII7b9 – bv7 – bI7 – bIVmaj7 – VImaj7#11 – biiiø7 – bVI7b9 – bii6 – II7 – bii6

Chord vocabulary

Chord	Roman numeral	Role	Heard in
C♯m7♭5	iiø7	In the key	A Section, B Section
F♯7♭9	V7b9	In the key	A Section, B Section
F♯7♭9/B	V7b9 (bass B)	In the key	A Section, B Section
Bm7	i7	Home chord (tonic)	A Section, B Section
Bm7/A	i⁴₂	Home chord (tonic)	A Section, B Section
Gmaj7	bVImaj7	In the key	A Section, B Section
Gmaj7/F♯	bVImaj⁴₂	In the key	A Section, B Section
Em7	iv7	In the key	A Section, B Section
A7	bVII7	In the key	A Section, B Section
A7♭9/D	bVII7b9 (bass D)	Secondary dominant (V/bIII)	A Section, B Section
Dmaj7	bIIImaj7	In the key	A Section, B Section
G♯m7♭5	viø7	Outside the key (chromatic)	A Section, B Section
C♯7♭9	II7b9	Outside the key (chromatic)	A Section, B Section
F♯m7♭5	vø7	Outside the key (chromatic)	A Section
B7♭9	I7b9	Secondary dominant (V/iv)	A Section
G♯aug7	VI+7	Outside the key (chromatic)	A Section
Gm7♭5	bviø7	Outside the key (chromatic)	B Section, C Section
C7♭9	bII7b9	Outside the key (chromatic)	B Section, C Section
Fm7	bv7	Outside the key (chromatic)	B Section, C Section
B♭7	bI7	Outside the key (chromatic)	B Section, C Section
E♭maj7	bIVmaj7	Outside the key (chromatic)	B Section, C Section
Aaug7	bVII+7	Outside the key (chromatic)	B Section
Dm7♭5	biiiø7	Outside the key (chromatic)	C Section
G7♭9	bVI7b9	Outside the key (chromatic)	C Section
G7♭9/C	bVI7b9 (bass C)	Outside the key (chromatic)	C Section
Cm7	bii7	Outside the key (chromatic)	C Section
Cm7/B♭	bii⁴₂	Outside the key (chromatic)	C Section
A♭maj7	VImaj7	Outside the key (chromatic)	C Section
A♭maj7/G	VImaj⁴₂	Outside the key (chromatic)	C Section
B♭7♭9/E♭	bI7b9 (bass E♭)	Outside the key (chromatic)	C Section
Am7♭5	bviiø7	Outside the key (chromatic)	C Section
D7♭9	bIII7b9	Outside the key (chromatic)	C Section
A♭maj7♯11	VImaj7#11	Outside the key (chromatic)	C Section
Cm6	bii6	Outside the key (chromatic)	C Section
D♭7	II7	Outside the key (chromatic)	C Section

Harmonic highlights

• A7♭9/D acts as V/bIII: it resolves to Dmaj7.
• B7♭9 acts as V/iv: it resolves to Em7.

Sources & accuracy

• Chords: the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). Community chord chart “You Must Believe In Spring-Rev JE” (credited “Legrand Michel”, style 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).
• Cross-check: the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). Community chord chart “You Must Believe In Spring” (credited “Legrand Michel”, style Ballad) from the forum file linked here, CC BY 4.0 via ChoCo. Performer/songwriter confirmed from Wikidata. A separately posted chart of the same song; its chords match this page's closely when both are read in the same key (similarity 82%).
• 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.
• Verified: two community charts of this song, posted in different forum threads, agree on its harmony. They're still charts, not transcriptions checked against the recording.
• Rhythm and chord durations aren't shown; each step is one chord change.