Music player(AB repeater)

audio player and interval repeater that can be used both for listening to music and learning a Language.

Features
audio playback
   - This app plays local audio files (mp3, wma, wav, etc) that you already have.
   - Order by Date added, Reverse order(date added), Alphabetical, Reverse order(Alphabetical)
   - Search Sound file and songs
interval repeat and manage repeat part
   - repeat player (music player repeat)
   - Set a repeat part for audio file
   - Save the repeat part set
   - Listen and repeat the foreign language sentences, and help foreign language conversation (English, Korean, Chinese, etc) Listening
   - Repeat the full repeat part list or select a part of it.
Create & manage playlists
   - You can add songs in to the Playlist you made and listen to music with the Playlist
   - Edit with long-press(long touch) or edit menu
Manage Favorite list
   - To add song to favorite list, just click the heart icon '♡'. If your heart icon is filled, the song is your favorites.
Control Music playback
   - Allows you to use 1 of 5 modes to adjust the playback speed of the Audio
   - Control music playback at the notification bar and drawer
Lyrics

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Required Permission
To work application properly below permissions are required:
android.permission.WRITE_EXTERNAL_STORAGE to write playlist file to disk.
android.permission.READ_EXTERNAL_STORAGE use to read audio files and display for playing or other operations