Musical tastes in tune with who you are
Fans of heavy metal music are gentle, creative people who are at ease with themselves, which makes them very similar to fans of classical music.
That's the finding of a new study at Scotland's Heriot-Watt University of the link between peoples' personalities and their choice of music.
Adrian North, the professor behind the study, said he was surprised at the similarities between fans of classical music and heavy metal, especially their creativity and generally shy natures.
"The general public has held a stereotype of heavy metal fans being suicidally depressed and of being a danger to themselves and society in general. But they are quite delicate things," he said in an interview with the BBC.
North suggests that music lovers tend to identify with the characteristics of the music itself.
"We think, what we think the answer is, that both types of music, classical and heavy metal, both have something of the spiritual about them — they're very dramatic — a lot happens."
The study of more than 36,000 people from six different countries found that people had more in common with fans of their favourite music in other countries than they had with fellow citizens who preferred different styles of music.
North describes it as a new kind of tribalism, based on musical taste.