ISWC · Musical Work

T-011691898-9

AR Y MYNYDD

Last verified: October 21, 2026

The ISWC for “AR Y MYNYDD” is T-011691898-9. 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

011691898Work 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.

SourcesCISACMLC2 sources

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What is ISWC T-011691898-9?

T-011691898-9 is an International Standard Musical Work Code (ISWC) that uniquely identifies the musical composition “AR Y MYNYDD”. 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-011691898-9

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What is ISWC T-011691898-9?

T-011691898-9

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What is ISWC T-011691898-9?