also the way this question of hers kinda answered by his scene
he hears you Vody ♡
he always do
(when he's not knocked dead lol)
once u play Vodya's SQ, u can figure out why Mitya not knowing what she sang triggered her so much
her hatred of ppl using her performance as proof of status is real
she did talk about it but at that time it sounds like her way to lead the convo to Chugunov, turns out its real