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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 be used with other instruments, such as electric bass, electric piano…
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distortion sound signal guitar power pedals valve effects used tone fuzz amplifiers overdrive clipping amplifier electric use volume voltage effect
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Elmore James | instance of | including Chicago bluesmen | 0.80 | text |
| Buddy Guy | instance of | including Chicago bluesmen | 0.80 | text |
| experimented to get a guitar sound that paralleled the rawness of blues singers such as Muddy Waters | instance of | including Chicago bluesmen | 0.80 | text |
| Howlin' Wolf | instance of | including Chicago bluesmen | 0.80 | text |
| replacing often their originals with the powerful Valco | instance of | including Chicago bluesmen | 0.80 | text |
| James Cotton's | instance of | Pat Hare produced heavily distorted power chords on his electric guitar for records | 0.80 | text |
| Deep Purple | instance of | hard rock bands | 0.80 | text |
| Led Zeppelin | instance of | hard rock bands | 0.80 | text |
| Black Sabbath forged what would eventually become the heavy metal sound through a combined use of high volumes | instance of | hard rock bands | 0.80 | text |
| heavy distortion | instance of | hard rock bands | 0.80 | text |
| Eddie Van Halen have been known to use variacs before VVR technology was invented | instance of | Guitarists | 0.80 | text |
| the 12AX7 in a power-valve circuit configuration | instance of | Such effects units can use a preamp valve | 0.80 | text |
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