BlueMusic - "Open local music in other apps"
Features:
1. Open & play music file(m4a, mp3 etc) from mail or other apps.
2. Import songs from music library.
3. Open local music in other apps that support "Open-in" feature.(Paid feature).
4. Supports playlists.
5. Supports iTunes file sharing, you can upload music files from your pc to iPhone.
6. Supports playing music in background.