ISRC
USED TO
Song: MAN I USED TO KNOW
Last verified:
The ISRC for “USED TO” is QZNWR2170105. 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 T3047564018.
Credit Chain
QZNWR2170105 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “USED TO”. 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 T3047564018, 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 “USED TO” is QZNWR2170105. 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 T3047564018.
