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  1. rock mu·sic
    IPA[rɑk ˈmjuzɪk]
  2. noun

    • 1. a form of popular music that evolved from rock and roll and pop music during the mid and late 1960s. Harsher and often self-consciously more serious than its predecessors, it was initially characterized by musical experimentation and drug-related or antiestablishment lyrics.

    • 2. another term for rock and roll

  3. Variation

    • n.: noun: rock music