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  1. Home
  2. ISRCs
  3. FRZ015500430
Just Duo album cover

ISRC

FRZ015500430

Just Duo✓2

Song: I DON'T KNOW WHY (I JUST DO)

Chet Baker–Dick Twardzik Quartet
matched
Released 1955-01-01

Last verified: August 1, 2026

FRZ015500430 is the International Standard Recording Code (ISRC) for the recording “Just Duo” by Chet Baker–Dick Twardzik Quartet, released 1955-01-01. 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. Written by FRED AHLERT, ROY TURK.

Format

FRCountry
Z01Registrant
55Year (1955)
00430Designation
Country:
ISO 3166-1 alpha-2 country code (FR).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (1955):
Last two digits of the reference year (1955). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Who wrote this song?

FRED AHLERTComposerLyricist
ROY TURKComposerLyricist

Credits Graph

MLC Song Code

I19880
Verify on MLC Portal →
SourcesMusicBrainzMLC✓2 sources

Verified on

  • MusicBrainz recording record
  • MLC song record

People also ask

What is the ISRC for "Just Duo" by Chet Baker–Dick Twardzik Quartet?+
The ISRC for "Just Duo" by Chet Baker–Dick Twardzik Quartet is FRZ015500430.
Who wrote "Just Duo"?+
"Just Duo" was written by FRED AHLERT, ROY TURK.
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.

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What is ISRC FRZ015500430?

FRZ015500430 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Just Duo” by Chet Baker–Dick Twardzik Quartet. 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.

Learn more about ISRCs · Powered by Notes.fm

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Songwriter profiles

Chet Baker–Dick Twardzik Quartet

FRZ015500430 is the International Standard Recording Code (ISRC) for the recording “Just Duo” by Chet Baker–Dick Twardzik Quartet, released 1955-01-01. 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. Written by FRED AHLERT, ROY TURK.

Chet Baker–Dick Twardzik Quartet