Name that tune

The one that starts around 25:00 in this video, which features Manoe’s whistling.

Wow - just a half hour short of five full days, and not even one little reply hinting that the writer has a vague feeling that there’s a slight possibility that the tune might be X.

This might be a Straight Dope record…

Sportpalastwalzer

Thank you! Half the fun of their concerts is watching the byplay between Manoe and Sanne…