ISWC · Musical Work

T-904763004-6

THE BEST DAY

81 recordings

Last verified: October 12, 2026

The ISWC for “THE BEST DAY” is T-904763004-6. ISWCs are ISO 15707 identifiers managed by CISAC; they identify the underlying song — its melody, lyrics, and arrangement — rather than any single recording. One composition can have many recordings (ISRCs). This work has 81 known recordings (ISRCs) indexed on Credits.fm.

Format

TPrefix

904763004Work number

6Check digit

Prefix:: "T" = musical work; "W" = work in progress.
Work number:: 9-digit unique work number assigned by CISAC.
Check digit:: ISO 7064 Mod 11-2 check digit that validates the rest of the code.

Credit Chain

ISRC81 recordings

ISWCTHE BEST DAY

What other identifiers does this connect to?

Songwriters/Publishers (IPI)

00454808145 00497322918 00454808243 00804356845 00444712759 00454808047 00657349509 00755936104 01046221203

Creative Contributors (ISNI)

0000 0000 7851 9858

SourcesCommunityMLC via NotesMusicBrainzNotes CreditsCISAC5 sources

Verified on

CISAC ISWC registry search

Identifier Graph

What is ISWC T-904763004-6?

T-904763004-6 is an International Standard Musical Work Code (ISWC) that uniquely identifies the musical composition “THE BEST DAY”. ISWCs are defined by ISO 15707 and managed by CISAC. Unlike ISRCs which identify recordings, an ISWC identifies the underlying song — the melody, lyrics, and arrangement.

This work has 81 recordings (ISRCs) associated with it. Each recording represents a distinct version — such as the original, a remix, a live performance, or a cover — that shares the same underlying composition.

Learn more about ISWCs · Powered by Notes.fm

ISWC · Musical Work

T-904763004-6

THE BEST DAY

81 recordings

Last verified: October 12, 2026

Format

TPrefix

904763004Work number

6Check digit

Prefix:: "T" = musical work; "W" = work in progress.
Work number:: 9-digit unique work number assigned by CISAC.
Check digit:: ISO 7064 Mod 11-2 check digit that validates the rest of the code.

Credit Chain

ISRC81 recordings

ISWCTHE BEST DAY

What other identifiers does this connect to?

Songwriters/Publishers (IPI)

00454808145 00497322918 00454808243 00804356845 00444712759 00454808047 00657349509 00755936104 01046221203

Creative Contributors (ISNI)

0000 0000 7851 9858

Which releases contain this work? (48)

Fearless

Taylor Swift

00199957210393

The Best Day (Taylor’s version)

Taylor Swift

006024381992042021-04-28

Fearless (Taylor’s version)

Taylor Swift

00602438241613

Fearless

Taylor Swift

00602517976290

Fearless

Taylor Swift

00602517991194

Fearless

Taylor Swift

006025179993812009-03-06

Fearless

Taylor Swift

006025270110972009-01-01

Fearless

Taylor Swift

006025270849922009-06-24

Fearless (platinum edition)

Taylor Swift

00602527273075

Taylor Swift Karaoke: Fearless

Taylor Swift

00602527718941

Fearless

Taylor Swift

008236744458362008-11-11

Fearless

Taylor Swift

008439300013782021-12-03

Fearless

Taylor Swift

008439300016062008-11-11

Taylor Swift Karaoke: Fearless

Taylor Swift

008439300022142009-01-01

Taylor Swift Karaoke: Fearless

Taylor Swift

008439300022212009-04-07

The Best Day

Taylor Swift

008439300022902019-09-12

Fearless (platinum edition)

Taylor Swift

008439300029312009-10-26

Fearless (platinum edition)

Taylor Swift

008439300029552009-02-07

reputation Stadium Tour Surprise Song Playlist

Taylor Swift

008439300393712018-11-28

Fearless (Big Machine Radio release special)

Taylor Swift

008439300395312018-12-13

Pride Month

Various Artists

008439300559752020-06-24

Fearless

Taylor Swift

06025179007762008-01-01

Fearless

Taylor Swift

06025179911942009-01-01

Fearless (platinum edition)

Taylor Swift

0602527230342009-01-01

Fearless

Peaceful Noise

1980090518922023-02-02

Fearless

Taylor Swift

46050267015022009-01-01

Fearless

Taylor Swift

49880055664302009-01-01

Fearless (platinum edition)

Taylor Swift

49880056000352010-01-01

Taylor Swift Karaoke: Fearless

Taylor Swift

49880056729572011-01-01

Fearless

Taylor Swift

49880057241752012-01-01

Fearless

Taylor Swift

49880312319992017-01-01

A. G. Cook

50545260013982020-08-12

Worst Of 7G

A. G. Cook

50563216982612025-08-22

Fearless

Taylor Swift

60091433552312009-01-01

Fearless (platinum edition)

Taylor Swift

60091434166352009-01-01

Fearless

Taylor Swift

6025179529802009-01-01

Fearless

Taylor Swift

6025179762902020-01-01

Fearless

Taylor Swift

6025179841032009-01-01

Fearless

Taylor Swift

602517999312

Fearless

Taylor Swift

602517999343

Fearless

Taylor Swift

602517999787

Fearless

Taylor Swift

6025270041502009-03-06

Fearless (Taylor's version) [The Violin Covers]

Ana Done

1980017936602022-06-24

Fearless (Taylor’s version)

Taylor Swift

006024358390592021-04-09

Fearless (Taylor’s version)

Taylor Swift

006024358390422021-04-09

Fearless (Taylor’s version)

Taylor Swift

006024358390352021-04-09

Fearless (Taylor’s version)

Taylor Swift

006024358389082021-04-09

Fearless (Taylor’s version)

Taylor Swift

006024358451112021-06-25

Recordings (81)

Taylor Swift

A. G. Cook

On release:7G(5054526001398)Worst Of 7G(5056321698261)

The Best Day

Taylor Swift

USUG12510659

On release:Fearless(00199957210393)

T-904763004-6

Format

What other identifiers does this connect to?

Verified on

People also ask

What is ISWC T-904763004-6?

T-904763004-6

Format

What other identifiers does this connect to?

Which releases contain this work? (48)

Recordings (81)

Who are the artists on this work?

Verified on

People also ask

What is ISWC T-904763004-6?

Which releases contain this work? (48)

Recordings (81)

Who are the artists on this work?