Over too many beers at lunch today I seem to own a 5 string banjo and a book , along the lines of " even a twat like you can play the banjo "! Question is .... how difficult is this ? I have no musical skill that I am aware of and a (drunken ) Â£ 50,00 bet that I can play the theme tune to " Steptoe and son " in four weeks . How difficult can it be ? All advice appreciated .