Acid (electronic music)
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Acid is an umbrella term for styles of electronic music—such as acid house, acid trance, acid techno, and acid breaks—which employ the "squelching" sounds of the Roland TB-303 synthesizer.<ref>Template:Cite journal</ref> The acid sound became popular in the mid-1980s in connection with the Chicago house scene, including artists such as Phuture and labels like Trax Records.<ref>Template:Cite journal</ref>
The term acid specifically refers to the harsh squelching sound of the Roland 303.<ref name="Nash">Nash, Rob (2009) "Techno: Encyclopedia of Modern MusicTemplate:Dead linkTemplate:Cbignore", The Sunday Times Culture's Encyclopedia of Modern Music, 1 February 2009, retrieved 22 November 2009</ref> The acid sound is achieved by turning up the filter resonance and turning down the cutoff frequency parameters of the synthesizer, along with programming the 303's accent, slide, and octave parameters.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The term acid has also been suggested to refer to the psychedelic qualities of the music, which may resemble elements of 1960s acid rock.<ref name="reitveld">Hillegonda C Rietveld (1998) This Is Our House: House Music, Cultural Spaces and Technologies Aldershot: Ashgate. Template:ISBN</ref>
