The Google Play Sound Search widget can help you recognize music and songs playing around you. You can:
-Identify songs, directly from your homescreen
-Purchase identified songs straight from Google Play, and add them to your Play Music library
-Keep a song identification history, synced across all of your Android devices, so you can purchase a song later
-Add the widget directly to your lockscreen, so you can recognize songs even faster (for devices running Android 4.2)
After youвЂ™ve installed the Google Play Sound Search widget, go to the widget picker and drag the Sound Search widget onto your homescreen. Click on the widget to start recognizing.