Hi Mick, welcome to Mudcat. If you put the name or any key phrase in the blue search box upper right, it will take you to the Hippopotamus Song in the Digital Tradition database here. Or just click on the name what I made into a link for you.
At the bottom of the song words is another link, says "CLICK HERE TO PLAY", and when you do, it should play you the tune.
Or were you looking for sheet music? If you have music notation software, a lot of them will turn a midi into sheet music, and that file is a midi that ends up in your browser's cache, so...
Does that help?

Blessings,
Barbara