Oh, she said in some video or post that she increased her pitch higher with training post op beyond the change that Dr Kim did for her? I did not know that. But for sure, in singing ones voice is most likely higher than in speaking. If I sing even withoout notes, just chants or mantras or such, my voice tends to be higher, I usually go a lot into head voice, too... which I avoid while speaking. But that was not so much the point - I think one prejudice about voice surgery is that it makes you unable to sing. One surgeon even told me that outright and another implicated it by saying my vocal range would be minimal (he does CTA only). Obviously that is not so, at least with Dr Kim and Remarcle, given that at least 4 or 5 people have shown that they can sing really well after surgery with Dr Kim and Cristal has shown that singing is possible after Remarcles surgery, too, although of course her recording shows still signs of a voice that needs healing a lot - Amys video which was after 5 months being post op also had still some hints of healing that has to go on in it (which happened later and now she is back to singing professionally). It seems that a post glottoplasty voice with some surgeons can be trained to be a good singing voice too.