Moment's Notice by John Coltrane

Overview

Key: E♭ major · Chords used: 25 · Sections: 5

Form: A Section → B Section → A Section → C Section → D 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

• Em7 – A7 – Fm7 – B♭7 – E♭maj7 – A♭m7 – D♭7 – Dm7 – G7 – E♭m7 – A♭7 – D♭ – Dm7♭5 – G7
  #i7 – #IV7 – ii7 – V7 – Imaj7 – iv7 – bVII7 – vii7 – III7 – i7 – IV7 – bVII – viiø7 – III7

B Section

• Cm7 – B7 – B♭m7 – E♭7 – A♭maj7 – A♭m7 – D♭7 – Gm7 – A♭m7 – D♭7 – G♭maj7 – Fm7 – B♭7
  vi7 – #V7 – v7 – I7 – IVmaj7 – iv7 – bVII7 – iii7 – iv7 – bVII7 – bIIImaj7 – ii7 – V7

A Section 2

Same chords as A Section 1.

C Section

• Cm7 – B7 – B♭m7 – E♭7 – A♭maj7 – A♭m7 – D♭7 – Gm7 – C7 – Fm7 – B♭7 – E♭/B♭ – Fm/B♭
  vi7 – #V7 – v7 – I7 – IVmaj7 – iv7 – bVII7 – iii7 – VI7 – ii7 – V7 – I⁶₄ – ii (bass B♭)

D Section

• Gm/B♭ – Fm/B♭ – E♭/B♭ – Fm/B♭ – Gm/B♭ – Fm/B♭ – E♭
  iii⁶ – ii (bass B♭) – I⁶₄ – ii (bass B♭) – iii⁶ – ii (bass B♭) – I

Chord vocabulary

Chord	Roman numeral	Role	Heard in
Em7	#i7	Outside the key (chromatic)	A Section
A7	#IV7	Outside the key (chromatic)	A Section
Fm7	ii7	In the key	A Section, B Section, C Section
B♭7	V7	In the key	A Section, B Section, C Section
E♭maj7	Imaj7	Home chord (tonic)	A Section
A♭m7	iv7	Borrowed from E♭ minor	A Section, B Section, C Section
D♭7	bVII7	Borrowed from E♭ minor	A Section, B Section, C Section
Dm7	vii7	Outside the key (chromatic)	A Section
G7	III7	Outside the key (chromatic)	A Section
E♭m7	i7	Borrowed from E♭ minor	A Section
A♭7	IV7	Outside the key (chromatic)	A Section
D♭	bVII	Borrowed from E♭ minor	A Section
Dm7♭5	viiø7	In the key	A Section
Cm7	vi7	In the key	B Section, C Section
B7	#V7	Outside the key (chromatic)	B Section, C Section
B♭m7	v7	Borrowed from E♭ minor	B Section, C Section
E♭7	I7	Secondary dominant (V/IV)	B Section, C Section
A♭maj7	IVmaj7	In the key	B Section, C Section
Gm7	iii7	In the key	B Section, C Section
G♭maj7	bIIImaj7	Borrowed from E♭ minor	B Section
C7	VI7	Secondary dominant (V/ii)	C Section
E♭/B♭	I⁶₄	Home chord (tonic)	C Section, D Section
Fm/B♭	ii (bass B♭)	In the key	C Section, D Section
Gm/B♭	iii⁶	In the key	D Section
E♭	I	Home chord (tonic)	D Section

Harmonic highlights

• A♭m7 (iv7) is borrowed from the parallel key, E♭ minor.
• D♭7 (bVII7) is borrowed from the parallel key, E♭ minor.
• E♭m7 (i7) is borrowed from the parallel key, E♭ minor.
• D♭ (bVII) is borrowed from the parallel key, E♭ minor.
• B♭m7 (v7) is borrowed from the parallel key, E♭ minor.
• G♭maj7 (bIIImaj7) is borrowed from the parallel key, E♭ minor.
• E♭7 acts as V/IV: it resolves to A♭maj7.
• C7 acts as V/ii: it resolves to Fm7.

Sources & accuracy

• Chords: the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). Community chord chart “Moment's Notice” (credited “Coltrane John”, style Up Tempo Swing) from the forum file linked here, CC BY 4.0 via ChoCo. Performer/songwriter confirmed from Wikidata.
• Section names: the chart has no section markings, so sections were detected by code from repeated 8-, 12- and 16-bar phrases (letters such as A and B mark different phrases).
• Cross-check: the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). Community chord chart “Moment's Notice” (credited “Coltrane John”, style Up Tempo Swing) 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 96%).
• 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.