ISWC · Musical Work

T-011054809-8

WHAT DID I DO LAST NIGHT?

2 recordings

Last verified: October 25, 2026

The ISWC for “WHAT DID I DO LAST NIGHT?” is T-011054809-8. 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 2 known recordings (ISRCs) indexed on Credits.fm.

Format

TPrefix

011054809Work number

8Check 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

ISRC2 recordings

ISWCWHAT DID I DO LAST NIGHT?

Previously known as

T-010179451-7

SourcesCISACMLCMusicBrainz3 sources

Verified on

CISAC ISWC registry search

Identifier Graph

What is ISWC T-011054809-8?

T-011054809-8 is an International Standard Musical Work Code (ISWC) that uniquely identifies the musical composition “WHAT DID I DO LAST NIGHT?”. 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 2 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.

Learn more about ISWCs · Powered by Notes.fm

T-011054809-8

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What is ISWC T-011054809-8?

T-011054809-8

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Recordings (2)

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People also ask

What is ISWC T-011054809-8?

Recordings (2)