My music player suggestions for local playback on Linux. Please note that you could pick any of these no matter the desktop environment if you do not care about consistently in look and feel. In that case I suggest to go with Strawberry.
On GTK environments: Rhythmbox, Exaile
On QT environments: Strawberry, Clementine and somewhere next year Amarok should be through its revival that KDE has announced not too long ago.