Gearchangeski

AVI emails me to inform me of the passing away of Eduard Kihl, dubbed Russia's Laughing Policeman.

The song in the embedded video starts in C, and shifts up a crisp, tidy and pre-announced semi-tone after 52 seconds, after 1 min 25 and again after 2 min 5 (thus arriving at D sharp). Then at 2 min 24 they do something clever and end up in C again. In terms of sheer professionalism, it's up there with Andy Williams' Sleighride: