Currently when audio files are indexed they are added as nmm:MusicPiece. This creates "music/tracks" for files like kde-runtime/knotify/sounds/KDE-Im-Contact-Out.ogg Instead these should be handled as nfo:Audio only. nmm:MusicPiece should be reserved for "real" music, rather thatn sound clips. The files could be identified if ID3 tags are available or not. * Files to touch: services/fileindexer/indexer/taglibextractor.cpp