One Call Away by Charlie Puth

Overview

Key: D♭ major · Chords used: 7 · Sections: 21

Form: B Section → B Section → A Section → A Section → A Section → B Section → B Section → A Section ×4 → A Section → B Section → B Section → C Section → C Section → C Section → B Section → B Section → B Section → B 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

B Section 1

• D♭ – A♭ – B♭m7 – G♭ – D♭ – A♭
  I – V – vi7 – IV – I – V

B Section 2

• D♭ – A♭ – B♭m7 – G♭ – A♭9sus4 – D♭
  I – V – vi7 – IV – V9sus4 – I

A Section 1

• B♭m – A♭ – D♭ – G♭
  vi – V – I – IV

A Section 2

Same chords as A Section 1.

A Section 3

• B♭m – A♭ – D♭ – G♭ – A♭
  vi – V – I – IV – V

B Section 3

Same chords as B Section 1.

B Section 4

Same chords as B Section 2.

A Section 4

Same chords as A Section 1.

A Section 5

Same chords as A Section 1.

A Section 6

Same chords as A Section 1.

A Section 7

Same chords as A Section 1.

A Section 8

Same chords as A Section 3.

B Section 5

Same chords as B Section 1.

B Section 6

Same chords as B Section 2.

C Section 1

• G♭ – B♭m – A♭
  IV – vi – V

C Section 2

Same chords as C Section 1.

C Section 3

• G♭ – B♭m – A♭ – G♭ – A♭9sus4
  IV – vi – V – IV – V9sus4

B Section 7

• D♭ – A♭ – B♭m7 – G♭ – D♭ – A♭ – D♭ – F7 – B♭m7 – G♭ – A♭9sus4
  I – V – vi7 – IV – I – V – I – III7 – vi7 – IV – V9sus4

B Section 8

Same chords as B Section 1.

B Section 9

Same chords as B Section 2.

B Section 10

• D♭ – A♭ – B♭m7
  I – V – vi7

Chord vocabulary

Chord	Roman numeral	Role	Heard in
D♭	I	Home chord (tonic)	B Section, A Section
A♭	V	In the key	B Section, A Section, C Section
B♭m7	vi7	In the key	B Section
G♭	IV	In the key	B Section, A Section, C Section
A♭9sus4	V9sus4	In the key	B Section, C Section
B♭m	vi	In the key	A Section, C Section
F7	III7	Secondary dominant (V/vi)	B Section

Harmonic highlights

• F7 acts as V/vi: it resolves to B♭m7.

Sources & accuracy

• Chords: the iReal Pro forum charts archived in ChoCo (de Berardinis et al., 2023). Community chord chart “One Call Away” (credited “Puth Charlie”, style Pop) 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 “One Call Away” (credited “Puth Charlie”, style Medium Swing) 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 100%).
• 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.