Control your music without having to switch applications. Google Music for Mac 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.
Get notifications whenever the currently playing song changes.
Use the mini player in the system menu bar to control your music without interrupting you.
Update your Now Playing status and scrobble tracks to Last.fm.
Use the custom appearance built into Google Music for Mac to make it look beautiful and integrated into your system, or stick with Google's original theme.