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  1. Home
  2. ISRCs
  3. DEF054502064
Porgy and Bess, opera: Act II, Scene II. "It Ain't Necessarily So" album cover

ISRC

DEF054502064

Porgy and Bess, opera: Act II, Scene II. "It Ain't Necessarily So"✓2

Song: Porgy and Bess: It Ain’t Necessarily So

Jascha HeifetzEmanuel Bay
matched
Released 2006-09-01

Last verified: July 16, 2026

DEF054502064 is the International Standard Recording Code (ISRC) for the recording “Porgy and Bess, opera: Act II, Scene II. "It Ain't Necessarily So"” by Jascha Heifetz, Emanuel Bay, released 2006-09-01. 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. The underlying musical work is ISWC T-900757862-3.

Format

DECountry
F05Registrant
45Year (2045)
02064Designation
Country:
ISO 3166-1 alpha-2 country code (DE).
Registrant:
3-character code identifying the label or distributor that assigned this ISRC.
Year (2045):
Last two digits of the reference year (2045). Years < 50 are 21st century.
Designation:
Unique 5-digit code assigned by the registrant for this specific recording.

Credit Chain

ISRCPorgy and Bess, opera: Act II, Scene II. "It Ain't Necessarily So"
ISWCPorgy and Bess: It Ain’t Necessarily So

Musical Work (ISWC)

T-900757862-3Porgy and Bess: It Ain’t Necessarily So

Credits Graph

MLC Song Code

PVAP18
Verify on MLC Portal →
SourcesMusicBrainzMLC✓2 sources

Verified on

  • MusicBrainz recording record
  • MLC song record

People also ask

What is the ISRC for "Porgy and Bess, opera: Act II, Scene II. "It Ain't Necessarily So"" by Jascha Heifetz?+
The ISRC for "Porgy and Bess, opera: Act II, Scene II. "It Ain't Necessarily So"" by Jascha Heifetz, Emanuel Bay is DEF054502064.
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. DEF054502064 is the ISRC for this recording; T-900757862-3 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 DEF054502064?

DEF054502064 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Porgy and Bess, opera: Act II, Scene II. "It Ain't Necessarily So"” by Jascha Heifetz, Emanuel Bay. 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-900757862-3, 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

Jascha HeifetzEmanuel Bay

DEF054502064 is the International Standard Recording Code (ISRC) for the recording “Porgy and Bess, opera: Act II, Scene II. "It Ain't Necessarily So"” by Jascha Heifetz, Emanuel Bay, released 2006-09-01. 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. The underlying musical work is ISWC T-900757862-3.

Jascha Heifetz, Emanuel Bay

Related

Other versions of this workView all on iswc.fm

It Ain't Necessarily So

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Porgy and Bess: It ain't Necessarily So (Arr. for Violin & Piano) (Remastered)

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Porgy and Bess: It Ain’t Necessarily So

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Porgy and Bess: It Ain’t Necessarily So

Anne-Sophie Mutter, André Previn

DEN960200452
4. IT AIN'T NECESSARILY SO (ACT II)GBBBC2100146

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