So can anyone explain to me why Fire Emblem Echoes SoV doesn't run on Citra?

I wonder why FE Echoes SoV crashes at the very beginning of the game. Can somebody explain it to me?

As far as I know it uses an unimplemnted audio engine. To get it to run you need to download the Citra Canary build, go to the Audio Settings and enable the “LLE Emulation” mode.

Thanks. I will see if by doing it I play the game.