Babymetal, outside of kawaii metal, also has some more progressive and even some folk metal sounds The japanese folklore tells that foxes can change into anything and deceive people Essentially kawaii metal is a form of folk metal in a way
Babymetal: HD Wallpaper of Japanese Metal Idol Harmony
Check out bands like coheed and cambria and spiritbox for progressive
And check out the hu, windrose, sabaton, and bloodywood for some folk metal examples.
[i] about the word megitsune > megitsune = me+kitsune = female+fox = vixen Such changes as k to g, s to z, etc Often occur in japanese compound words (it is called rendaku (= sequential voicing) )