ISWC · Musical Work

T-072143636-7

SOMEONE YOU USED TO KNOW

40 recordings

Last verified: September 7, 2026

The ISWC for “SOMEONE YOU USED TO KNOW” is T-072143636-7. 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 40 known recordings (ISRCs) indexed on Credits.fm.

Format

TPrefix

072143636Work number

7Check 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

ISRC40 recordings

ISWCSOMEONE YOU USED TO KNOW

What other identifiers does this connect to?

Songwriters/Publishers (IPI)

00129859137 00048844646 00334573463 00230698957

Creative Contributors (ISNI)

0000 0000 5516 1101

SourcesCISACMLCNotes CreditsMusicBrainz4 sources

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CISAC ISWC registry search

Identifier Graph

What is ISWC T-072143636-7?

T-072143636-7 is an International Standard Musical Work Code (ISWC) that uniquely identifies the musical composition “SOMEONE YOU USED TO KNOW”. 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 40 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.

T-072143636-7

Format

What other identifiers does this connect to?

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What is ISWC T-072143636-7?

T-072143636-7

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What other identifiers does this connect to?

Which releases contain this work? (2)

Recordings (40)

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People also ask

What is ISWC T-072143636-7?

Which releases contain this work? (2)

Recordings (40)