Silly ideas can sometimes yield musical dividends. Jack Harkness's theme from Torchwood has a distinct stuttering, marching rhythm; turns out the composer origi

Silly ideas can sometimes yield musical dividends. Jack Harkness's theme from Torchwood has a distinct stuttering, marching rhythm; turns out the composer originally scored it for a scene where Jack crashed through a barn wall on a tractor to catch some bad guys and he set the tune to the rhythm of the phrase "here he comes on a ruddy great tractor".