Have you ever been out shopping, perhaps in a department store, and a song comes on the speaker system that you simply need to know what's its title and who sang it? You need to have it? That happens to me a lot as a music lover and by the time I've fumbled my mobile out of my pocket, in order to use some music identification program like Shazam, Soundhound, or MusixMatch, the track has inevitably finished.
"Whats that Song" does a fairly good job of tracking down the track your listening to, in my case even being able to recognize little known Indian songs via my Gear S3. It has to be said that I do feel that the quality of the microphone built into the S3 does assist in its pin-pointing accuracy.