(Music Sales America). David Harp has taught 500,000 people to blow their blues away. Here is the third edition of his bestselling book for harmonica. David''s "sampler" including blues, rock, folk, classical, country, gypsy, and celtic harmonica styles is the easiest method ever. After David''s "Three Minute Lesson" (as seen on TV), the student will be ready to play their first song or riff.