Better communicate what is the current playset

Submitted by Jakub Steiner @jimmac

Assigned to Jordana Luft

Link to original bug (#724229)

Description

Music allows to start playback of an album, a set of albums/song by an artist or song list. The seek buttons allow to change tracks within this set, but there is no indication of what the current playlist is.

There's also bugs regarding indicating the currently plaing song when switching views and pushing the seek buttons (you end up with multiple indicators).

Blocking

• #73