Peter Tork once said that all kinds of music are about shutting out the tensions of life, putting it away.
If that’s the case, then metal is the locomotive train to personal serenity. I do not want to sound prejudiced, but there is something special about the sound of metal music; a sense of belonging, a feeling of revolution, a rebellious attitude.
For quite a while the scene was dominated by male musicians, with the female contribution to the genre being mostly that of the main vocalist.
In Japan, where the chasm between what you hear and what you see is greater than the Grand Canyon, there are many all-female metal bands and musicians who want to challenge that.
Here is a very subjective list of the best all-female metal bands from Nippon. http://itcher.com/mag/japanese-all-female-metal-bands/