Classes

1. Play music (V+B) +- (need to Test)
2. sort music by playlist (B) +- (need to Test)
3. sort music by metadata (V) --
4. set own image for the playlist (V) --
5. sync data in LAN via p2p (B) +-
6. import manager (B) (need to Test)
7. compres of music (V) --
8. ui (V+B) +- (need to Test)

Design (V) --

1. widgets (V) +- (need to Test)
2. style (css) (V) +- (need to Test)
3. layouts (V) +- (need to Test)