ISWC · Musical Work

T-900938029-4

Back in the Day

65 recordings

Last verified: August 23, 2026

The ISWC for “Back in the Day” is T-900938029-4. 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 65 known recordings (ISRCs) indexed on Credits.fm.

Format

TPrefix

900938029Work number

4Check 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

ISRC65 recordings

ISWCBack in the Day

What other identifiers does this connect to?

Songwriters/Publishers (IPI)

00800678644 00185204576 00339286043 00333998132 00241201528 00089012278 01174826144 00227451577 00335876727 00074479740

+3 more

SourcesCISACMusicBrainz2 sources

Verified on

CISAC ISWC registry search

Identifier Graph

What is ISWC T-900938029-4?

T-900938029-4 is an International Standard Musical Work Code (ISWC) that uniquely identifies the musical composition “Back in the Day”. 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 65 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-900938029-4

Format

What other identifiers does this connect to?

Verified on

People also ask

What is ISWC T-900938029-4?

T-900938029-4

Format

What other identifiers does this connect to?

Which releases contain this work? (3)

Recordings (65)

Verified on

People also ask

What is ISWC T-900938029-4?

Which releases contain this work? (3)

Recordings (65)