Start with the song 43% burnt. It probably won't be your cup of tea but imo they are soooo talented.

Have you ever listend to The Mars Volta? They might be more your style and defintely worth a listen.

Metalcore/hardcore/mathcore are sub genres of metal. My favorite ones \:\) . Time signtures can be really odd and can change frequently within a song. That is only one aspect though.

I’m armed and I’m drinking. You don’t want to listen to advice from me, amigo.

-Max Payne