An introduction to computer audio
If you think that dBpoweramp is one of the best ripper and format converter available and JRiver the best media player, Sonata it a media player to look for as it is an integrated version of both dBpoweramp and JRiver.
It caters for classical music by supplying tags like genre, style, composer, work, conductor, orchestra, soloists, singers, period, instrument, etc.
They build their own proprietary classical database called SonataDB that now counts +40,000 albums tagged by musicologists and that incorporates hi-res covers art.
A "review" can be found here