Someone more knowledgable can chime in, but @beckfield ’s list at the top of this feature request is the closest I’ve seen to a comprehensive list of supported tags:
This is a request for comprehensive support of the ID3/Vorbis/etc. tags that are necessary for truly meaningful and complete organization of music libraries, both classical and popular.
Here is what I hope will be a comprehensive list of the ID3 tags that are essential for digital music management (including special needs for classical music). For FLAC and other file formats, the appropriate equivalents of these tags, if they exist, should be supported.
Tags which are necessary for complete ma…
