Moon River by Henry Mancini

Overview

Key: C major · Chords used: 20 · Sections: 4

Form: A Section → B Section → A 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 1

• Cmaj7 – Am7
  Imaj7 – vi7
• Fmaj7♯11 – Cmaj7 (×2)
  IVmaj7#11 – Imaj7
• Bm7♭5 – E7♭9
  viiø7 – III7b9

B Section

• Am – Am7/G – Fmaj7 – F – Am – Am/G – B7 – Em7 – G7
  vi – vi⁴₂ – IVmaj7 – IV – vi – vi (bass G) – VII7 – iii7 – V7

A Section 2

Same chords as A Section 1.

C Section

• Am7 – Am7/G – F♯m7♭5
  vi7 – vi⁴₂ – #ivø7
• Fmaj7♯11 – Cmaj7/E (×2)
  IVmaj7#11 – Imaj⁶₅
• F7 – Em7 – Am7 – Dm7 – G7 – C6 – A
  IV7 – iii7 – vi7 – ii7 – V7 – I6 – VI
• D – G7 (×2)
  II – V7

Chord vocabulary

Chord	Roman numeral	Role	Heard in
Cmaj7	Imaj7	Home chord (tonic)	A Section
Am7	vi7	In the key	A Section, C Section
Fmaj7♯11	IVmaj7#11	In the key	A Section, C Section
Bm7♭5	viiø7	In the key	A Section
E7♭9	III7b9	Outside the key (chromatic)	A Section
Am	vi	In the key	B Section
Am7/G	vi⁴₂	In the key	B Section, C Section
Fmaj7	IVmaj7	In the key	B Section
F	IV	In the key	B Section
Am/G	vi (bass G)	In the key	B Section
B7	VII7	Secondary dominant (V/iii)	B Section
Em7	iii7	In the key	B Section, C Section
G7	V7	In the key	B Section, C Section
F♯m7♭5	#ivø7	Outside the key (chromatic)	C Section
Cmaj7/E	Imaj⁶₅	Home chord (tonic)	C Section
F7	IV7	Outside the key (chromatic)	C Section
Dm7	ii7	In the key	C Section
C6	I6	Home chord (tonic)	C Section
A	VI	Outside the key (chromatic)	C Section
D	II	Secondary dominant (V/V)	C Section

Harmonic highlights

• B7 acts as V/iii: it resolves to Em7.
• D acts as V/V: it resolves to G7.

Sources & accuracy

• Chords: the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). Community chord chart “Moon River - Linda” (credited “Mancini Henry”, style Waltz) from the forum file linked here, CC BY 4.0 via ChoCo. Performer confirmed from the Billboard year-end charts.
• 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 “Moon River” (credited “Mancini Henry”, style Waltz) from the forum file linked here, CC BY 4.0 via ChoCo. Performer confirmed from the Billboard year-end charts. A separately posted chart of the same song; its chords match this page's closely when both are read in the same key (similarity 68%).
• 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.
• 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.