I organize by composer's birthday. That way I have a progression that goes by music period *and* composer simultaneously--renaissance, baroque, rococo, classical, romantic, impressionist, 20th century, and contemporary.
The only problem is the collections that might have multiple composers or even artists as well. For those I have a separate block of albums generally organized alphabetically by primary artist.
The only problem is the collections that might have multiple composers or even artists as well. For those I have a separate block of albums generally organized alphabetically by primary artist.