macOS High Sierra Media Key Enabler for iTunes and Spotify.
You can prioritize which app you would like to control or you can go with the default behaviour which controls the running app. The app runs in the menu bar in the form of a subtle and beautiful black dot.
Download the compiled application from my homepage
If you want even more control over what you want to control you should try beardedspice
Contributors : Michael Dorner (michaeldorner), Matt Chaput (mchaput), Ben Kropf (ben-kropf), Alejandro Iván (alejandroivan), Sungho Lee (sh1217sh), Björn Büschke (maciboy), Sergei Solovev (e1ectron)
Thank you!!!
What's new in version 1.9 :
- added open at login menu option
- German localization update
- Korean localization update
What's new in version 1.8 :
- added pause menu option
- added pause automatically menu option : if no music player is running macOS default behavior is used and keys are forwarded to currently active media player
- Russian localization
- German localization
- Spanish localization
- fixed headphone button issue
- added macOS Sierra compatibility if you want explicit music player control there
What's new in version 1.7 :
- fast forward/rewind is possible when iTunes is selected explicitly
- Korean localization
- rumors say that it works with TouchBar
What's new in version 1.6 :
- increased compatibility with external keyboards
What's new in version 1.5 :
- now you can explicitly prioritize iTunes or Spotify
- play button now starts up iTunes or Spotify if they are not running aaaand explicitly selected
What's new in version 1.4 :
- memory leak fixed
What's new in version 1.3 :
- previousTrack replaced with backTrack in case of iTunes for a better experience
What's new in version 1.2 :
- new icon
- source code is super tight now
- developer id signed, its a trusted app now