The Major Diatonic harmonica is the most commonly used tuning for playing Blues, Rock, Country, Folk and Jazz. This is the traditional blues and rock harmonica tuning. Major Diatonic harps are produced by several manufacturers and all of these harmonicas have the exact same note layout as the Lee Oskar Major Diatonic. An excellent choice for playing blues, rock country and jazz styles, notes can be moved higher or lower in pitch by the player that has mastered the ‘bending’ technique. Available in all keys plus low ‘F’ and high ‘G’.