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  1. Home
  2. ISRCs
  3. GBAYK1600021

WE USED TO KNOW

ISRC

GBAYK1600021
matched

Last verified: September 6, 2026

The ISRC for this recording (“WE USED TO KNOW”) is GBAYK1600021. ISRCs are 12-character ISO 3901 identifiers that uniquely tag a specific sound recording — different masters, remixes, and live versions each receive a distinct ISRC. The underlying musical work is ISWC T-010163086-7. Written by IAN SCOTT ANDERSON.

Format

GBCountry
AYKRegistrant
16
Year (2016)
00021Designation
Country:
ISO 3166-1 alpha-2 country code (GB).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (2016):
Last two digits of the reference year (2016). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCWE USED TO KNOW
ISWCWE USED TO KNOW
IPIIAN SCOTT ANDERSON

Musical Work (ISWC)

T-010163086-7WE USED TO KNOW

People also ask

What is the ISRC for this recording of “WE USED TO KNOW”?+
The ISRC for this recording (“WE USED TO KNOW”) is GBAYK1600021.
What is the ISWC for “WE USED TO KNOW”?+
The ISWC for “WE USED TO KNOW” is T-010163086-7. The ISRC GBAYK1600021 identifies this specific recording; the ISWC identifies the underlying musical work shared by all versions.
Who wrote “WE USED TO KNOW”?+
“WE USED TO KNOW” was written by IAN SCOTT ANDERSON. The ISWC for this composition is T-010163086-7.
Who publishes “WE USED TO KNOW”?+
The publishers credited on “WE USED TO KNOW” include: IAN ANDERSON MUSIC LTD, BMG MONARCH. These publishers administer the writers' shares in this recording's underlying composition. Credits.fm reports registered publisher credits, not legal copyright ownership.
What is an ISRC and what does it tell you?+
An ISRC (International Standard Recording Code) is a 12-character ISO 3901 identifier that uniquely tags a specific sound recording. The first two characters are the country code, the next three are the registrant (label or distributor), the next two are the year, and the last five are a unique recording number.
Is the ISRC the same as the ISWC?+
No. The ISRC identifies a specific recording, while the ISWC identifies the underlying musical composition. GBAYK1600021 is the ISRC for this recording; T-010163086-7 is the ISWC for the composition it is a recording of. One composition (ISWC) can have many recordings (ISRCs) — originals, remixes, live versions, and covers each get their own ISRC but share the same ISWC.

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What is ISRC GBAYK1600021?

GBAYK1600021 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “WE USED TO KNOW”. ISRCs are 12-character alphanumeric codes defined by ISO 3901, used globally by streaming platforms, record labels, and rights organizations to track plays and distribute royalties.

This recording is linked to the musical work T-010163086-7, which represents the underlying composition. Multiple recordings can share the same musical work — for example, an original version, a remix, and a cover would each have their own ISRC but reference the same ISWC.

Learn more about ISRCs · Powered by Notes.fm

The ISRC for this recording (“WE USED TO KNOW”) is GBAYK1600021. ISRCs are 12-character ISO 3901 identifiers that uniquely tag a specific sound recording — different masters, remixes, and live versions each receive a distinct ISRC. The underlying musical work is ISWC T-010163086-7. Written by IAN SCOTT ANDERSON.

Who wrote this song?

IAN SCOTT ANDERSONComposerLyricist
IPI: 00086990813
IAN ANDERSON MUSIC LTD OriginalPublisher0.00%IPI: 00054131316
BMG MONARCH OriginalPublisher100.00%IPI: 00744673419

Who publishes this song?

IAN ANDERSON MUSIC LTDOriginalPublisher
IPI: 00054131316
BMG MONARCHOriginalPublisher
IPI: 00744673419

Which contributors are credited?

0000 0001 1755 3806Ian Anderson

Identifier Graph

ISRCGBAYK1600021ISWCT-010163086-7IPIIAN SCOTT ANDER…ISNIIan Anderson

MLC Song Code

S06778
Verify on MLC Portal →
SourcesMLCMusicBrainz✓2 sources

Verified on

  • MusicBrainz recording record
  • MLC song record

Related

Other versions of this workView all on iswc.fm

We Used to Know (live at Carnegie Hall, November 4, 1970; 2025 remix)

Jethro Tull

GBAYK2400027
We Used to Know

Jethro Tull

GBAYK0100145
Medley: We Used to Know / For a Thousand Mothers

Jethro Tull

GBCBR0401206
WE USED TO KNOWUSLZJ1980893
WE USED TO KNOWGBAYK1000206

Songwriter profiles

IAN SCOTT ANDERSONIPI