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This cancels the fundamental tone of the string, but does not cancel its overtones. Pinch harmonicĪ pinch harmonic is produced when the player's thumb or index finger slightly catches the string at a point near the pickups after it is picked. When the string is picked it vibrates at a higher frequency than the fundamental tone. A natural harmonic is usually played by lightly placing a finger on a string halfway or a quarter of the way along its length. There are two kinds of harmonic on the guitar: Natural harmonicĪ natural harmonic is a musical note produced by reducing or amplifying vibrations of overtones on a guitar string. Distortion is also called overdrive and is common in heavy metal and rock music. Distortionĭistortion happens when an amplified sound is changed to create a fuzzy or growling tone on a guitar. This technique is often found in bluegrass music. Bottleneckīottleneck is a technique of playing guitar by sliding a tube made of metal or glass along the guitar strings to alter the pitch. Guitar techniquesĮlectric guitarists and bassists are able to vary the sound by using a variety of guitar playing techniques. Bass guitars have lower notes than regular electric guitars. The electric guitar is common in rock music and can also be found in other types of popular music. These signals are amplified when an instrument is connected to an amplifier. Electric guitar and bass guitarĪn electric guitar uses a pickup to convert the vibration of the strings into electrical signals. They are an essential part of modern popular music. Electronic instruments were developed during the 20th century.