Yeah i mean you can Basicially interpret those two Genres how you like it
Every Rythm Game is mostly also a Survival Game because if you out of the Rythm you mostly gonna Die
Same could be said for a Survival Game if you have a Pitch in your "Breathing Sound" when you get hurt as player so it gets slower and slower and your character gets Slower. Would be kinda Rythm because the Breathing Sound Rythms to your Health and you have to Survive.