It tried it a few times, both humming and and using other techniques to better create the sound. Had little luck sadly.

First I tried the Mario theme song, it got it, but with very low confidence and had about equal confidence for a Bone Thugs song lol.

Tried it again with a rock song that was at least popular enough to show up on an official Spotify Playlist for its decade and genre. It got that with pretty good accuracy.

Finally I tried some sludge metal and punk tunes. I can't vocalize the sludge sound worth shit so I'm not shocked it didn't come back with anything, but I'm mildly disappointed it didn't find anything for the relatively simple Choking Victim song I vocalized, but I assume song popularity is a big component.

Cool feature though, unfortunately I can't hold a tune for as long as the snippet it wants lol.