metadata editor

Feature description:

I would very much like the feature to change meta data in the app. For example, i have have songs in different album wich i want to combine in one album. Further it would be nice the change things like the artists and track nummer.

Problem solved:

After downloading song, they might be added to all kinds of different albums. Having a meta data editor makes it possible to add them to one album and change their track number for expample.

Brought benefits:

Less messy album page, and lets me make albums from a movie for example with the songs from different sources without having like 10 albums with one single track in it.

Other application solutions:

 
Other music apps i have used have this, its way easier, rather than having to download a stand alone metadata editor
 

Additional description and context:

 
The way is see it, albums are different then playlists. Albums are for songs/tracks from a move or game for example and a playlist is a combination from different albums. Playlist are in my oppinion for lest say a certain mood with song/track fitting that mood, so different then a album
 

Screenshots / Mockup: