A genre of rock music that is about or describes any and all acts of murder, homicide or killing. Which includes music about serial killers from the first person point of view or people who are murders. In order for a band to be called a murder rock band at least 75 percent of their materiel they perform, write, record and or release has to be about murder or the act of murdering in the lyrical content. It has a dark, edgy, creepy, overall disturbing feel when one listens to it.

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