Harmonica - Harmonica Techniques

Harmonica Techniques

'Vibrato' is a technique commonly used while playing the harmonica and many other instruments,to give the note a 'shaking' sound. This technique can be accomplished in a number of ways. The most common way is to change how the harmonica is held. For example, by opening and closing your hands around the harmonica very rapidly you achieve the vibrato effect. Another way is to use a 'head shaking' technique, frequently used in blues harmonica, in which the player moves the lips between two holes very quickly. This gives a quick shaking technique that is slightly more than vibrato and achieves the same aural effect on sustained notes. The vibrato might also be achieved via rapid glottal (vocal fold) opening and closing, especially on draws (inhalation) simultaneous to bending, or without bending. This obviates the need for cupping and waving the hands around the instrument during play.

In addition to the 19 notes readily available on the diatonic harmonica, players can play other notes by adjusting their embouchure and forcing the reed to resonate at a different pitch. This technique is called bending, a term possibly borrowed from guitarists, who literally "bend" a string to subtly change the pitch. Bending also creates the glissandos characteristic of much blues harp and country harmonica playing. Bends are essential for most blues and rock harmonica due to the soulful sounds the instrument can bring out. The "wail" of the blues harp typically requires bending. In the 1970s, Howard Levy developed the overbending technique (also known as "overblowing" and "overdrawing".) Overbending, combined with bending, allowed players to play the entire chromatic scale.

In addition to playing the diatonic harmonica in its original key, it is also possible to play it in other keys by playing in other "positions" using different keynotes. Using just the basic notes on the instrument would mean playing in a specific mode for each position. Harmonica players (especially blues players) have developed terminology around different "positions," which can be confusing to other musicians.

Another technique, seldom used to its full potential, is altering the size of the mouth cavity to emphasize certain natural overtones. When this technique is employed while playing chords, care must be taken in overtone selection as the overtones stemming from the non-root pitch can cause extreme dissonance.

Harmonica players who amplify their instrument with microphones and tube amplifiers, such as blues harp players, also have a range of techniques that exploit properties of the microphone and the amplifier, such as changing the way the hands are cupped around the instrument and the microphone or rhythmically breathing or chanting into the microphone while playing. Blues and folk players refer to the instrument with a range of less-common names including: hand reed, Mississippi saxophone, licking stick, pocket sax, toe pickle, tin sandwich, ten-holed tin-can tongue twister, and French Harp.