I definitely had success with soundhound. No Rain by Blind Melon was stuck in my head but I couldn't remember the band.

Hummed the riff and had it in no time.

you sing well?

I'm not the person you asked, but I can tell you that I sing very poorly, yet have gotten SoundHound to recognize songs.

I think its about doing the notes correctly, not the voice. I think it could even work with your mouth closed.

It's all about getting the direction change of subsequent notes right. Up or Down is all that matters. And the nice bit is that it doesn't matter if you transpose or if you go up too far or down too far for the next note.

You'll note that you need to define a sequence of similar notes as 'down' or 'up' to make it work.

I mean, that's what humming is.

SoundHound. I never had success with the humming feature though.

I dont think shazam used humans, which is a cool aspect of this idea. Its just missing a market.

It supports it, but it doesn't work that well in my experience.