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Nu metal bassists and drummers are often influenced by funk and hip hop, respectively, adding to nu metal's rhythmic nature. Blast beats, which are common in heavy metal subgenres such as black metal and death metal, are extremely rare in nu metal. Nu metal's similarities with many heavy metal subgenres include its use of common time, distorted guitars, power chords and note structures primarily revolving around Dorian, Aeolian or Phrygian modes. While loud and heavily distorted electric guitars are a core feature of all metal genres, nu metal guitarists took the sounds of "violence and destruction" to new levels with their overdriven guitar tone, which music journalists Kitts and Tolinski compared to the "...sound [of] a Mack truck being crushed by a collapsing skyscraper."