The description of Winampx App
1. you can group audios in playlist.
2. it's autosaved for every audio volume level, so you don't have to set volume level again for the same audio file.
3. you can set start and end of the audio file.
4. you can set the repeat count of each audio file and-or the playlist.
5. it has equalizer preset for every audio file it's auto-saved.
6. it has device audio files explorer.