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    Terraria v1.4.4.9
    
   Terraria source code documentation 
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Must be threadsafe!
Implemented in ReLogic.Content.Sources.FileSystemContentSource, ReLogic.Content.Sources.XnaDirectContentSource, ReLogic.Content.Sources.ZipContentSource, and ReLogic.Content.Sources.ContentSource.
Referenced by Terraria.Audio.LegacyAudioSystem.FindReplacementTrack().