Classical CD's to MP3: descriptors

This is a little OT but not really, since I'd be using Linux tools for the job. I want to convert some of my many classical CDs to MP3 format. The problem is how to translate the usual classical music descriptors to the Artist/Song/Album descriptors usually used for MP3 files. Are there any usual conventions for this? For what it's worth, the best classical descriptors of a single track would usually be: Composer Work Movement/Section Recording artists (maybe several, as in a concerto) Thanks for any help (and suggestions for the best tool). Paul