Perfidia by Alberto Domínguez

Overview

Key: C major · Chords used: 16 · Sections: 12

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

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 1

• Cm – C7 – Fm – G7♭9 – Cm – C7 – Fm – D7
  i – I7 – iv – V7b9 – i – I7 – iv – II7

Intro 2

• G7♭9 – C – Am
  V7b9 – I – vi

Verse 1

• Dm – G7 – C – Am
  ii – V7 – I – vi

Verse 2

• Dm – G7
  ii – V7

A Section 1

• C – Am – Dm – G7 (×2)
  I – vi – ii – V7
• C – Am – Dm – F – E7 – Dm7 – G7
  I – vi – ii – IV – III7 – ii7 – V7

A Section 2

• C – Am – Dm – G7 (×2)
  I – vi – ii – V7
• C – Am – Dm – F – E7
  I – vi – ii – IV – III7

B Section 1

• Dm – E7 (×2)
  ii – III7
• Gsus4 – G7
  Vsus4 – V7

C Section 1

• C – Am – Dm – G7 (×3)
  I – vi – ii – V7
• C – Am
  I – vi

A Section 3

Same chords as A Section 2.

B Section 2

Same chords as B Section 1.

C Section 2

• C – Am – Dm – G7 (×3)
  I – vi – ii – V7

Outro

• C – Am – Dm – G7 (×3)
  I – vi – ii – V7
• Em – E♭ – Dm – D♭ – C
  iii – bIII – ii – bII – I

Chord vocabulary

Chord	Roman numeral	Role	Heard in
Cm	i	Borrowed from C minor	Intro
C7	I7	Outside the key (chromatic)	Intro
Fm	iv	Borrowed from C minor	Intro
G7♭9	V7b9	Borrowed from C minor	Intro
D7	II7	Outside the key (chromatic)	Intro
C	I	Home chord (tonic)	Intro, Verse, A Section, C Section, Outro
Am	vi	In the key	Intro, Verse, A Section, C Section, Outro
Dm	ii	In the key	Verse, A Section, B Section, C Section, Outro
G7	V7	In the key	Verse, A Section, B Section, C Section, Outro
F	IV	In the key	A Section
E7	III7	Outside the key (chromatic)	A Section, B Section
Dm7	ii7	In the key	A Section
Gsus4	Vsus4	In the key	B Section
Em	iii	In the key	Outro
E♭	bIII	Borrowed from C minor	Outro
D♭	bII	Outside the key (chromatic)	Outro

Harmonic highlights

• Cm (i) is borrowed from the parallel key, C minor.
• Fm (iv) is borrowed from the parallel key, C minor.
• G7♭9 (V7b9) is borrowed from the parallel key, C minor.
• E♭ (bIII) is borrowed from the parallel key, C minor.

Sources & accuracy

• Chords: the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). Community chord chart “Perfidia (Gig)” (credited “Dominguez Alberto”, style Bolero) 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 “Perfidia” (credited “Dominguez Alberto”, style Bolero) 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 73%).
• 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.
• The chart's D.S./D.C./coda jumps have been written out in playing order.
• 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.