Read Instructions Carefully
Radiant Player (Native Google Music Play client)
turns Google Play Music into a separate, beautiful application compatible with your Mac's media keys and including support for notifications.
Media Keys: Control your music without having to switch applications. Radiant Player responds to the media keys built into your Mac, allowing you to easily control the playback of your music no matter what you're doing.
Notifications: Get notifications whenever the currently playing song changes.
Last.fm Integration: Update your Now Playing status and scrobble tracks to Last.fm.
Adjustable Appearance: - Use the custom appearance built into Radiant Player to make it look beautiful and integrated into your system, or stick with Google's original theme.