I use iTunes which organises the music files into folders in this order: Artist -> Album.
I'm not saying iTunes is an ideal perfect program but that is one good thing about the program I like. Unfortunately in the newer versions it decides to put numbers in front of the file name which used to previously be optional.

iTunes cannot import or play wma, real files or mp3pro files (this format is becoming less common nowadays & was a patented format). It can play ogg vorbis files if you add a special 3rd party plug-in.

There's lots of free id3 taggers out there. I'm not sure about windows ones since I use a mac computer.