ISRC
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One ISRC for “Definitely Class Five” by Rob Simonsen is US4DG2100181. 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 2021-11-12. The underlying musical work is ISWC T3169077827.
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US4DG2100181 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Definitely Class Five” by Rob Simonsen. 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 T3169077827, 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.
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One ISRC for “Definitely Class Five” by Rob Simonsen is US4DG2100181. 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 2021-11-12. The underlying musical work is ISWC T3169077827.
