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  1. Home
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  3. PT4KM2100002
DAYS OF LONELINESS album cover

DAYS OF LONELINESS

ISRC

PT4KM2100002

Song: ONE OF THOSE DAYS

matched

Last verified: September 16, 2026

The ISRC for this recording (“DAYS OF LONELINESS”) is PT4KM2100002. ISRCs are 12-character ISO 3901 identifiers that uniquely tag a specific sound recording — different masters, remixes, and live versions each receive a distinct ISRC. The underlying musical work is ISWC T3083671272.

Format

PTCountry
4KMRegistrant
21Year (2021)
00002Designation
Country:
ISO 3166-1 alpha-2 country code (PT).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (2021):
Last two digits of the reference year (2021). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCDAYS OF LONELINESS
ISWCONE OF THOSE DAYS

Musical Work (ISWC)

T3083671272ONE OF THOSE DAYS

People also ask

What is the ISRC for this recording of “DAYS OF LONELINESS”?+
The ISRC for this recording (“DAYS OF LONELINESS”) is PT4KM2100002.
What is the ISWC for “ONE OF THOSE DAYS”?+
The ISWC for “ONE OF THOSE DAYS” is T3083671272. This recording is titled “DAYS OF LONELINESS”. The ISRC PT4KM2100002 identifies this specific recording; the ISWC identifies the underlying musical work shared by all versions.
What is an ISRC and what does it tell you?+
An ISRC (International Standard Recording Code) is a 12-character ISO 3901 identifier that uniquely tags a specific sound recording. The first two characters are the country code, the next three are the registrant (label or distributor), the next two are the year, and the last five are a unique recording number.
Is the ISRC the same as the ISWC?+
No. The ISRC identifies a specific recording, while the ISWC identifies the underlying musical composition. PT4KM2100002 is the ISRC for this recording; T3083671272 is the ISWC for the composition it is a recording of. One composition (ISWC) can have many recordings (ISRCs) — originals, remixes, live versions, and covers each get their own ISRC but share the same ISWC.

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What is ISRC PT4KM2100002?

PT4KM2100002 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “DAYS OF LONELINESS”. ISRCs are 12-character alphanumeric codes defined by ISO 3901, used globally by streaming platforms, record labels, and rights organizations to track plays and distribute royalties.

This recording is linked to the musical work T3083671272, which represents the underlying composition. Multiple recordings can share the same musical work — for example, an original version, a remix, and a cover would each have their own ISRC but reference the same ISWC.

Learn more about ISRCs · Powered by Notes.fm

The ISRC for this recording (“DAYS OF LONELINESS”) is PT4KM2100002. ISRCs are 12-character ISO 3901 identifiers that uniquely tag a specific sound recording — different masters, remixes, and live versions each receive a distinct ISRC. The underlying musical work is ISWC T3083671272.

Listen on Apple Music
Album: O Sol É Vida3:18Track 10

Who wrote this song?

MARIA BROBERGComposerLyricist
IPI: 00706512271
DWB MUSIC LTD. OriginalPublisherIPI: 00530095678
BLUEWATER MUSIC CORP. SubPublisherIPI: 00161970171
HAMPUS OLOV JON EURENIUSComposerLyricist
IPI: 00474983109
DWB MUSIC LTD. OriginalPublisherIPI: 00530095678
BLUEWATER MUSIC CORP. SubPublisherIPI: 00161970171
FRANCISCO MONIZ OLIVEIRA LIMA DE FARIAComposerLyricist
IPI: 00540962157
DWB MUSIC LTD. OriginalPublisherIPI: 00530095678
BLUEWATER MUSIC CORP. SubPublisherIPI: 00161970171
MARTIN ERIK WIIKComposerLyricist
IPI: 00592567605
DWB MUSIC LTD. OriginalPublisherIPI: 00530095678
BLUEWATER MUSIC CORP. SubPublisherIPI: 00161970171

Who publishes this song?

DWB MUSIC LTD.OriginalPublisher
IPI: 00530095678
BLUEWATER MUSIC CORP.SubPublisher
IPI: 00161970171

Identifier Graph

ISRCPT4KM2100002ISWCT3083671272IPIMARIA BROBERGIPIHAMPUS OLOV JON…IPIFRANCISCO MONIZ…IPIMARTIN ERIK WIIK

MLC Song Code

OC5GB9
Verify on MLC Portal →
SourcesMLCMusicBrainzMLC✓3 sources

Verified on

  • MusicBrainz recording record
  • MLC song record

Related

Other versions of this workView all on iswc.fm

One Of Those Days

Sona

DK2DY2100167
ONE OF THOSE DAYSAZA012100004
ONE OF THOSE DAYSQZRP52160383