Mentasm, coproduced with Mundo Muzique, became iconic within rave culture, as it was the track that gave birth to the "mentasm riff" (also known as the "Hoover sound"): a churning, dirgelike synth pattern that wormed into techno's communal genome and has since been mutated and reused in literally thousands of records. It was pre-empted to an extent by Richie Hawtin and John Acquaviva in their Cybersonik project; although Hawtin, in response, made sure to answer Beltram's seminal Energy Flash (1990) in return with Substance Abuse (1991). Beltram and the "mentasm riff" are strongly associated with Drum & Bass, the Belgian techno scene, and the R&S record label, as well as hardcore/hard house in their various permutations since 1994.
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