#1
Ok so I found the Japanese Math Rock band Toe and absolutely love their music. Would anybody happen to know any other good Math Rock bands?
#3
Not like that exactly lol it's called math rock for it's complex rhythm sections mostly putting drums at the forefront of the mix
#4
Here are more J post/math bands in the same vein as Toe:
Te'
About Tess
Lite

For a bigger variety within the genre:
-Tera Melos (From Sacramento, They're pretty eclectic and can be hard to get into, but definitely worth the exposure)
-Giraffes? Giraffes! (Guitar/Drums two piece from PA?, really good stuff)
-This Town Needs Guns (Now they go by TTNG, hail from England)
-Arcane Roots (They Have math elements mixed with post hardcore)
-Planets (Bass/Drum two piece from Napa, Ca. The bass player is a good friend of mine, and they are quite incredible)
-Icarus the Owl (Arguably Prog/Pop but they're definitely Mathy in execution)

And the Classics, if you want to dive into the history of Math:
-Don Caballero
-Battles
-Slint
-Hella

I know that's a lot, and it's only off the top of my head, but it should be enough to get you started.