A couple of musical – or music-themed – moments for you today. (I think the background Christmas carols are getting to me.) For more useful, provocative or just plain life-enhancing snippets from around the web, see our full Crackers list.

Let Me Entertain You:  you may have read our earlier Q&A session with Peter Cook, author of Sex, Leadership and Rock’n’Roll. If you’d like to hear more about how his ideas can influence business leaders’ thinking, tune in to Radio 4 at 20.30 on 17 Dec, catch the repeat on 20 Dec at 21.30, or catch it on iPlayer for the following seven days.

Sweet Georgia Brown med traktorkomp: our favourite YouTube clip of recent times, and an exercise lesson in how to improvise your way out of an unexpected human resources crisis. (But do bear in mind that, although tractors don’t drink, smoke, run off with other musicians’ wives or throw tantrums, you can’t rely on them to make valuable creative contributions in their own right.)

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