Finally, you can search for songs by whistling or singing – Hum To Search

The new Google Search feature allows you to try to recognize a song as you sing a melody to your phone. “Hum to Search” is offered through the basic Google app for iOS and Android, and works with humming, whistling, or any sounds you can think of.

The results appear in the order of accuracy in percentages, from 0 to 100%, depending on how much Google thinks it has hit.

After that, you can find out more information about the song, and you will also be offered links to listen to it. More information is in the video below.