Music Abbreviations and Acronyms
- SOSakari Oramo
- SOShout Out
- SOAState of Alert
- SOADSystem of A Down
- SOAPSymphony Orchestra Academy of The Pacific
- SOARSound of America Record
- SOARSound of America Records
- SOBSouth of The Border
- SOBSteve On Broadway
- SOBSame Old Bollocks
- SOBSounds of Brooklyn
- SOBSave Our Band
- SOCSäChsischer Offroad Cup
- SODSoft On Demand
- SODFSounds of Da Future
- SODSSociety of Distinguished Songwriters
- SOESecret of Evermore
- SOFStudentOrkesterFestivalen
- SOFCSticker On Front Cover
- SOFIASupport of Female Improvising Artists
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