ISRC
SEMPER FIDELIS
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The ISRC for “SEMPER FIDELIS” is QZAKB2102940. 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 T9002444328. Written by CALVIN CUSTER, JOHN PHILIP SOUSA.
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QZAKB2102940 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “SEMPER FIDELIS”. 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 T9002444328, 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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MLC Song Code
The ISRC for “SEMPER FIDELIS” is QZAKB2102940. 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 T9002444328. Written by CALVIN CUSTER, JOHN PHILIP SOUSA.
