I lost about 2 notes on the lower end - pre OP I could go down to 85 Hz, now anything below 120 is hard to do, but I can sometimes reach 100 Hz. It definitely is only low volume in that range and it cracks. Below 130 Hz is not a really useable range now anymore for me. I also lost something on top - which bugs me. I was able to go to 880 Hz and sometimes even to 900-something. Now the very most I can get is 760, but usually I am stuck below 700 Hz. Thats quite a significant loss

- So far I did not get anything back really. I guess I would have to do some sort of high pitch singing training to try and get it back? Voice exercises mostly concentrate on the speaking pitch and a bit above...
For me, hoarseness came and went up until now. It got worse when the Botox stopped being active and then another time when the Clonazepam ran out - and during all the time I had more hoarse days and less hoarse days. Now it seems to be mostly on the good side though, so I think it is going to go away mostly, as long as I use the right phonation pattern and not too low pitch.
(This is 10 months post OP with Yeson)