I'm thinking of writing a folk song..... hmmm, how do I start.... erm..... I'll need a definition of what is "folk music" first, then I can settle on some basic parameters and start to think of some essential ingredients.....then how I might build appropriate notes into some acceptable structure...this Cecil Sharp White Paper might help...

For Christ's sake Bob - just write the f******g thing

"How many roads must a man walk down...."