ISWC · Musical Work

T-010434904-3

WHAT IS A MUM

Last verified: October 17, 2026

The ISWC for “WHAT IS A MUM” is T-010434904-3. 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).

Format

TPrefix

010434904Work number

3Check 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.

SourcesCISACMLC2 sources

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What is ISWC T-010434904-3?

T-010434904-3 is an International Standard Musical Work Code (ISWC) that uniquely identifies the musical composition “WHAT IS A MUM”. 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.

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T-010434904-3

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What is ISWC T-010434904-3?

T-010434904-3

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What is ISWC T-010434904-3?