ISWC · Musical Work

T-321754475-3

HAPPY BIRTHDAY

61 recordings

Last verified: August 20, 2026

The ISWC for “HAPPY BIRTHDAY” is T-321754475-3. 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). This work has 61 known recordings (ISRCs) indexed on Credits.fm.

Format

TPrefix

321754475Work 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.

Credit Chain

ISRC61 recordings

ISWCHAPPY BIRTHDAY

What other identifiers does this connect to?

Songwriters/Publishers (IPI)

01187697000 00591787694 01203708198 00388794680 00447545044 01204081703 00039657154

SourcesCISACMusicBrainz2 sources

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CISAC ISWC registry search

Identifier Graph

What is ISWC T-321754475-3?

T-321754475-3 is an International Standard Musical Work Code (ISWC) that uniquely identifies the musical composition “HAPPY BIRTHDAY”. 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 61 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-321754475-3

Format

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What is ISWC T-321754475-3?

T-321754475-3

Format

What other identifiers does this connect to?

Recordings (61)

Verified on

People also ask

What is ISWC T-321754475-3?

Recordings (61)