what it sounds like

Just so you know, Kate Bush makes these words:

Heathcliff, it's me - Cathy. / Come home - I'm so cold! / Let me in-a-your window.

sound like:

Heethcli.... it's meeacatheee acome ho-oh-oh-ome-ah so co ho-ho-hoal let me ina your noh-ho-o-o-o-o-o

i.e. utterly incomprehensible.