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  1. Home
  2. ISWCs
  3. T-303720251-6

ISWC · Musical Work

T-303720251-6

JACK

12 recordings

Last verified: July 26, 2026

T-303720251-6 is the International Standard Musical Work Code (ISWC) for the musical composition "JACK". 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 12 known recordings (ISRCs) indexed on Credits.fm.

Format

TPrefix
303720251Work 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

ISRC12 recordings
ISWCJACK

What other identifiers does this connect to?

Songwriters/Publishers (IPI)

011678196180103108402100828779577006404981440044303030500340976843011277852430042538993401008278867
SourcesCISACMusicBrainzMLC✓3 sources

Verified on

  • CISAC ISWC registry search

Identifier Graph

ISWCJACKISRCUSUG12502340ISRCQZYLR2004780ISRCQZYLR1004780ISRCUSUG12501085ISRCQZTV32251180

People also ask

What is ISWC T-303720251-6?+
ISWC T-303720251-6 identifies the musical composition "JACK". ISWCs are defined by ISO 15707 and managed by CISAC to uniquely identify the underlying song — the melody, lyrics, and arrangement.
How many recordings use ISWC T-303720251-6?+
ISWC T-303720251-6 has 12 recordings (ISRCs) associated with it. Each recording is a distinct version — such as the original, a remix, a live performance, or a cover — that shares the same underlying composition.
How is an ISWC different from an ISRC?+
An ISWC identifies a musical work (the underlying composition — melody, lyrics, arrangement). An ISRC identifies a specific sound recording of that work. One ISWC can have many ISRCs — for example, the original recording, a remix, a live version, and a cover would each have their own ISRC but share the same ISWC.

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What is ISWC T-303720251-6?

T-303720251-6 is an International Standard Musical Work Code (ISWC) that uniquely identifies the musical composition "JACK". 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 12 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

Which releases contain this work? (4)

JACK

HARDY

1934363040092022-09-28

the mockingbird & THE CROW

HARDY

1934363049312023-01-20

the mockingbird & THE CROW

HARDY

193436317047

the mockingbird & THE CROW

HARDY

1934363291872023-04-12

Recordings (12)

1
JACK

Unknown Artist

USUG12502340
2
JACK

Unknown Artist

USUG12501085
3
JACK

Unknown Artist

QZTV32251180
4
JACK

HARDY

QZ22S2200110
5
JACK

Unknown Artist

QM24S2300251
6
JACK

HARDY

QZ22S2200078
7
JACK

Unknown Artist

QZTAU2499101
8
JACK

Unknown Artist

FR3Z82213111
9
JACK

Unknown Artist

USG7D2343305
10
JACK (BACKING)

Unknown Artist

QZYLR1004780
11
JACK (ORIGINALLY PERFORMED BY HARDY)

Unknown Artist

QZTV32250310
12
JACK (INSTRUMENTAL)

Unknown Artist

QZYLR2004780

MLC Song Code

JC4MQZ
Verify on MLC Portal →