I seem to remember Soundhound claimed (and maybe still claims) to be able to work not only on recorded music, but when you whistle/hum/sing a song. I never had

I seem to remember Soundhound claimed (and maybe still claims) to be able to work not only on recorded music, but when you whistle/hum/sing a song. I never had much luck with that, but that could be because of my lack of musical talent. What Soundhound does these days that Shazam doesn't (I think; I haven't actually tried Shazam in a long time) is that it displays lyrics for many songs, and is often able to synchronize those lyrics with where you are in the song.