What kind of whistler are you? Some people make up their own jaunty tune, like Richard Briers in The Good Life.
Some have a minimalist approach, keeping an even tone and concentrating on breathy repetition rather than anything melodic. What’s that, Sooty? Yes! Exactly like Einsturzende Neubaten!
I am a simple man with simple, red-blooded tastes. I whistle a bloody TUNE, lad! My latest pursed-lip banger is the theme tune to the Phil Silvers Show. Also the whistled bit from the song Breakdance Party from about 1983. I do have others in my repertoire but I don’t recall what they are.