Where is the boss music?

When you play a roguelike, the bosses are the big make or break climaxes where you find out if your build can make it. Everything is on the line, and you want to feel that tension.

But in path of champions its like... Kinda the same. Just some board themes. I guess Jinx's is kinda hype. Seriously though, if this mode is the main focus for the foreseeable future, we need some real boss music.