Google just launched its “hum to search” feature, which allows users to hum, whistle, or sing for 10-15 seconds in order to identify a song.
The feature currently works in 20 languages, and Google hopes to add more.

Google has finally launched the perfect feature for when a song is stuck in your head but you don’t know any of the words.

“Hum to search” launched today on both the Google app for iOS and Android, according to Google’s blog, The Keyword. Users can also whistle or sing directly into the mic to identify a song.

https://www.businessinsider.co.za/google-hum-to-search-how-to-identify-song-without-lyrics-2020-10