IINA - The modern video player for macOS
Skip Tunes - Control iTunes, Spotify, or Rdio from your Mac's menubar
Palbum - Continue playing an album from the last track you heard
Muzzy - it’s a tiny and gorgeous iTunes companion that lives on your menu bar. For Mac OSX, its free!
Baritone - Spotify controls that live in your menubar.
Spotify - Map shows when two people play same song at same time