ISRC
When It's Sleepytime Down South2
Song: When It’s Sleepy Time Down South
Last verified:
The ISRC for “When It's Sleepytime Down South” by Louis Armstrong is USSM19927818. 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 1974-01-01. The underlying musical work is ISWC T-071192536-8. Written by CLARENCE MUSE, LEON RENE, OTIS RENE.
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USSM19927818 is an International Standard Recording Code (ISRC) that uniquely identifies the recording “When It's Sleepytime Down South” by Louis Armstrong. 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 T-071192536-8, 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 “When It's Sleepytime Down South” by Louis Armstrong is USSM19927818. 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 1974-01-01. The underlying musical work is ISWC T-071192536-8. Written by CLARENCE MUSE, LEON RENE, OTIS RENE.
