There are 2 more or less automatic ways to get a new files and folder structure with the help of MP3tag:
If you already have the right amount of folders - only the have not yet got the correct name, then try something like this:
Load the files, select them (you can load files from several albums at once).
Create an action of the type "Format value" for _DIRECTORY
Format string: %artist% - %album% - %year%
and "Bad" should become "Michael Jackson - Bad - 1991" provided, the fields are filled with the right data.
If you still want to distribute files from one folder to several others, use the function Convert>Tag-Filename.
Enter the path and filename with text constants and field variables, e.g.
d:\music\%artist%\%artist% - %album% - %year%$num(%track%,2) - %title%