Hi n8wachT and welcome. Your English is very good
This is a problem a couple of other people have reported. There is another thread about it here
but not a proper solution unfortunately.
The issue seems to be with the way your computer is reading the tags in the mp3 files. You could try replacing the proper game music files with some mp3's of your own and seeing if it then works. You would need top replace:
Otherwise, if you have an XBox360 then you can play Echoes+ on there very soon.