Guest Marion,

If you've never seen the movie, "Deliverance," rent it!! It's not only a great film but within the first 30 minutes there is, as folks have mentioned here, a great example of "dueling" instruments, namely, "Dueling Banjos." That one scene is almost worth the whole movie. (It was made in the 1970's and stars Jon Voight, Burt Reynolds, etc.)