Move files to subfolders according to genres

Got 500 files properly tagged and I'd like to create subfolders according to their genre.
Like this:
mp3/dnb
mp3/juke
mp3/dubstep

how do I do it ?

thanks

I doubt that the / is a valid character for a folder.

Provided that you really have these user-defined genres in the field GENRE, you can
use the function Convert>Tag-Filename
Format string: mp3\%genre%\%_filename%

thanks your solution worked flawlessly