http://chairport.net/chairport/media/audio/mp3s/Lupe%20Fiasco%20-%20Touch%20The%20Sky_%20Hosted%20by%20DJ%20E.%20Nyce/06%20Conflict%20Diamonds.mp3 

should become

http://chairport.net/chairport/media/audio/mp3s/Lupe%20Fiasco/Touch%20The%20Sky_%20Hosted%20by%20DJ%20E.%20Nyce/06%20Conflict%20Diamonds.mp3

and 

http://chairport.net/chairport/media/audio/mp3s/Lupe%20Fiasco%20-%20Touch%20The%20Sky_%20Hosted%20by%20DJ%20E.%20Nyce/07%20Touch%20The%20Sky%20-%20(Featuring%20Kanye%20West).mp3

should become

http://chairport.net/chairport/media/audio/mp3s/Lupe%20Fiasco/Touch%20The%20Sky_%20Hosted%20by%20DJ%20E.%20Nyce/07%20Touch%20The%20Sky%20-%20(Featuring%20Kanye%20West).mp3

but actually becomes

http://chairport.net/chairport/media/audio/mp3s/Lupe%20Fiasco/Touch%20The%20Sky_%20Hosted%20by%20DJ%20E.%20Nyce/07%20Touch%20The%20Sky%/(Featuring%20Kanye%20West).mp3

The current .htaccess file is located in the mp3s directory, and it's contents are:

RewriteEngine On

RewriteRule "((\ |[a-zA-Z0-9-'/._()])*)? - (.*)"	$1/$3