On YouTube’s main app, the song search feature is available for a while now on Android. To use it, just start a search and tap the “Song” tab instead of “Voice.” Similar to “Hum to Search” in Google Search, you can play, sing, or hum the song you’re looking for. YouTube uses AI to match the sound to the original recording.
With that said, it’s logical for the YouTube Music app to include this feature, especially if it aims to compete with others on the market. While Apple Music or Spotify, for instance, don’t offer a built-in feature to recognize songs by humming or listening to them, they both integrate with Shazam.
After all, since Apple owns the popular song identification app, it would be odd not to integrate it with its music streaming service. Once Shazam identifies a song, it offers the option to listen to it on Apple Music. This integration works similarly with Spotify as well.