ISWC · Musical Work

T-305927705-9

WE WISH YOU A MERRY CHRISTMAS

Last verified: November 5, 2026

The ISWC for “WE WISH YOU A MERRY CHRISTMAS” is T-305927705-9. 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

305927705Work number

9Check 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.

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What is ISWC T-305927705-9?

T-305927705-9 is an International Standard Musical Work Code (ISWC) that uniquely identifies the musical composition “WE WISH YOU A MERRY CHRISTMAS”. 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-305927705-9

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What is ISWC T-305927705-9?

T-305927705-9

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What is ISWC T-305927705-9?