[Feature Request] Treat underscores as spaces

[Plasmus]

Most of my collection has underscores instead of spaces, and most programs have an options to interpret the _ or . as a space.
The underscores are causing a problem with getting the last.fm artist info.
Just wondering if this would be an easy implementation.

My folder structure:
Root
--Artist (_ for spaces in artists name)
----Artist-Album_Name-Year
------01-artist-song_name.mp3
--Artist_2
...

Thanks