ISWC · Musical Work

T-010778994-5

IF I KNEW THEN

Last verified: October 18, 2026

The ISWC for “IF I KNEW THEN” is T-010778994-5. 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

010778994Work number

5Check 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.

SourcesCISACMLCMusicBrainz3 sources

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What is ISWC T-010778994-5?

T-010778994-5 is an International Standard Musical Work Code (ISWC) that uniquely identifies the musical composition “IF I KNEW THEN”. 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-010778994-5

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What is ISWC T-010778994-5?

T-010778994-5

Format

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What is ISWC T-010778994-5?