Are you triggered by some classical recordings you heard and liked?
That would be good, and if you know the name of the composer/work that would be a very good starting point.
Otherwise there are several roads where you could start.
- Find some compilation albums with 'the usual suspects' (Mozart, Beethoven, Vivaldi, Bach etc.)
- Search websites for 'Classical for beginners' (you'll find sites such as
http://classicalmusic.about.com/od/classicalmusic101/a/intro072104.htm)
- The old way. (ask friends or relatives with a taste for classical music)
- If you have some favorite contemporary artists, see if you can find if they have classical composers who inspired them.
- Find recordings with some more extreme different styles such as Gregorian, Opera, New-Age, and also some different instrumental assemblies such as full orchestra, chamber orchestra, or (solo) works for piano, violin ,cello etc.
If then you encounter something that you like or interests you, focus
only on that and delve deeper into that specific area, leaving the rest (for now).
That way it will be fun and enjoyable, rather than "I need to learn and appreciate classical music in all it's varieties".
If you have found some works that you enjoy, then search da internetz for: "best recording of ....", and you will surely get some clues and (often contradicting) opinions.
Be prepared, if this clings to you it might become an endless and very time-consuming travel.
For some classical works I have assembled 10 or sometimes even 20 different versions, and still don't know which ones to keep or to let go of.
I am curious how you will fare. Also because classical music also strains MusicBee's features a lot more than pop/contemporary music does.