9 Downloadable software in the nature of a mobile application for playing locally saved audio files, music, and videos in different formats; Downloadable software in the nature of a mobile application for creating playlists according to folder, favorite, artist, album, and genre; Downloadable mobile software in the nature of a application for adding labels to audio files, namely, music tags, to describe content in the categories of song name, artist, album, genre, song cover, album cover, and artist cover; Downloadable software in the nature of a mobile application for customizing music listening, namely, applying equalizer effects, changing player background, boosting player volume; Downloadable software in the nature of a mobile application for editing lyrics by online searching or local editing