On these two DVDs, Bob Brozman gives you a thorough introduction to slide guitar! DVD ONE: Bob Brozman uses a variety of instruments - a Dobro-type resophonic, a Weissenborn and a National steel - to teach the funky blues tunes, cool riffs and adventurous improvisations that he pulls from his seemingly bottomless bag of tricks. His course in lap style slide guitar will open up exciting musical ide…