The Media Library design (database module) has been adopted for Music Station 4.x and later versions. The folders containing your music files need to be added to the media folder list. Please set up the media folders in
“Control Panel” > “Applications” > “Media Library” > “Media Folder”.
If you still do not see your music files showing up in the Music Station, please make sure you have appropriate access permissions (at least read permission.) Folder and file permissions can be set in “Control Panel” > “Privilege Settings” > “Shared Folders” > Access Permissions”.