ISRC
Letter2
Song: LETTER
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The ISRC for “Letter” by SILENT SIREN is JPPO01900067. 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 2019-03-13. The underlying musical work is ISWC T9281342641.
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JPPO01900067 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Letter” by SILENT SIREN. 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 T9281342641, 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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The ISRC for “Letter” by SILENT SIREN is JPPO01900067. 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 2019-03-13. The underlying musical work is ISWC T9281342641.
