Does anyone know a website where I could get piano sheet music for post-hardcore bands like Chiodos? I searched google, and didn't find anything.
I'm a person.
Probably nowhere. Sorry buddy, but most online sheet music is for pop, showtunes, or classical music.
If you could blow up the world with a flick of a switch,
Would you do it?

If you could make everybody poor just so you could be rich,
Would you do it?

With all your power,
What would you do?
just get the powertab file for some of their stuff and read the notation from that,,,im not sure if guitar pro has standard notation too or not,,,,but if it does you could use that too