Amazon.com description: Product Description: Blues Harmonica Level 1, within the School of the Blues Lesson Series, is an exciting beginning blues harmonica course. The ideas presented are solid in the blues tradition with great sounding bluesy licks to play, even at the beginning level! Phrasing Concepts (how small pieces of music, called licks, are organized to create a pleasing solo), 12 Bar Blues Theory, Vibrato, Shakes and Tongue Blocking are covered. Recording includes all harmonica parts notated in the book with accompaniment music. This book and its online download recording use a 'C' and 'A' major diatonic harmonica.