SmashTunes displays the currently playing Music, iTunes or Spotify track in the menu bar of your Mac. Apart from that it allows you to control Spotify and Music via hot keys aka keyboard shortcuts.
menu structure and artwork
album artwork
appearance settings
Music
Spotify
iTunes
Control

Play / Pause / Next / Previous / Ratings

Play / Pause / Next / Previous

Play / Pause / Next / Previous / Select / Playlist control / Ratings

Display track info in menu bar check_circle check_circle check_circle
Hotkeys a.k.a. keyboard shortcuts check_circle check_circle check_circle
Rate tracks through the menu or by using hotkeys check_circle check_circle
Display artwork check_circle check_circle check_circle