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  3. DEF057203121
Sonata for Piano, 4 hands in C major, K. 521: I. Allegro album cover

Sonata for Piano, 4 hands in C major, K. 521: I. Allegro✓2

ISRC

DEF057203121

Song: Sonata for Piano with 4 Hands in C major, K. 521: I. Allegro

Christoph EschenbachJustus Frantz
matched
Released 1972-01-01

Last verified: October 21, 2026

One ISRC for “Sonata for Piano, 4 hands in C major, K. 521: I. Allegro” by Christoph Eschenbach is DEF057203121. 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. Released 1972-01-01. The underlying musical work is ISWC T-800184797-9.

Format

DECountry
F05Registrant
72Year (1972)
03121Designation
Country:
ISO 3166-1 alpha-2 country code (DE).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (1972):
Last two digits of the reference year (1972). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCSonata for Piano, 4 hands in C major, K. 521: I. Allegro
ISWCSonata for Piano with 4 Hands in C major, K. 521: I. Allegro

Musical Work (ISWC)

T-800184797-9Sonata for Piano with 4 Hands in C major, K. 521: I. Allegro

People also ask

What is one ISRC for “Sonata for Piano, 4 hands in C major, K. 521: I. Allegro” by Christoph Eschenbach?+
One ISRC for “Sonata for Piano, 4 hands in C major, K. 521: I. Allegro” by Christoph Eschenbach is DEF057203121.
What is the ISWC for “Sonata for Piano with 4 Hands in C major, K. 521: I. Allegro”?+
The ISWC for “Sonata for Piano with 4 Hands in C major, K. 521: I. Allegro” is T-800184797-9. This recording is titled “Sonata for Piano, 4 hands in C major, K. 521: I. Allegro”. The ISRC DEF057203121 identifies this specific recording; the ISWC identifies the underlying musical work shared by all versions.
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. DEF057203121 is the ISRC for this recording; T-800184797-9 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 DEF057203121?

DEF057203121 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Sonata for Piano, 4 hands in C major, K. 521: I. Allegro” by Christoph Eschenbach, Justus Frantz. 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-800184797-9, 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

Credits Graph

MLC Song Code

O1638K
Verify on MLC Portal →
SourcesMusicBrainzMLC✓2 sources

Verified on

  • MusicBrainz recording record
  • MLC song record
Christoph EschenbachJustus Frantz

One ISRC for “Sonata for Piano, 4 hands in C major, K. 521: I. Allegro” by Christoph Eschenbach is DEF057203121. 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. Released 1972-01-01. The underlying musical work is ISWC T-800184797-9.

Christoph Eschenbach, Justus Frantz

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