ISRC
Day Four: Mystery2
Last verified:
NLB931601604 is the International Standard Recording Code (ISRC) for the recording “Day Four: Mystery” by Ayreon, released 2004-01-01. 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 T8019022175.
Credit Chain
NLB931601604 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “Day Four: Mystery” by Ayreon. 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 T8019022175, 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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NLB931601604 is the International Standard Recording Code (ISRC) for the recording “Day Four: Mystery” by Ayreon, released 2004-01-01. 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 T8019022175.
