Distortion (music)

Distortion and overdrive are forms of audio signal processing used to alter the sound of amplified electric musical instruments, usually by increasing their gain, producing a "fuzzy", "growling", or "gritty" tone. Distortion is most commonly used with the electric guitar, but may also be used with other electric instruments such as electric bass, electric piano, synthesizer and Hammond organ. Guitarists playing electric blues originally obtained an overdriven sound by turning up their vacuum tube-powered guitar amplifiers to high volumes, which caused the signal to distort. While overdriven tube amps are still used to obtain overdrive, especially in genres like blues and rockabilly, a number of other ways to produce distortion have been developed since the 1960s, such as distortion effect pedals. The growling tone of a distorted electric guitar is a key part of many genres, including blues and many rock music genres, notably hard rock, punk rock, hardcore punk, acid rock, grunge and heavy metal music, while the use of distorted bass has been essential in a genre of hip hop music and alternative hip hop known as "SoundCloud rap".

Quotes about distortion in music

• Metallica’s crunch sound is often cleaner than people expect. [...] Don’t get me wrong, distortion is great, but there’s definitely a point where having too much turns your tone to mush. The low end loses its tightness and your overall tone gets flabby, with no definition or cut. When you’re first starting out, there’s always the temptation to hide behind distortion because it lets you get away with murder. But, when it comes to rhythm work, you’ve gotta back off that gain control a bit, especially if you’re playing with another guitarist. Actually, over the years, James and I have found that besides giving our tone more definition and cut, backing off the gain makes us play our riffs better because we can’t get away with being sloppy.
  • Kirk Hammett of Metallica, as quoted by Guitar World [1]