Here is an excerpt from Tico Torres interview with Billboard on Jon's vocal recovery with JBJ interview as well:

Jon, there are a few moments in the documentary when you talk about finding joy and how that was hard to do while you were really struggling with your voice. Where are you both finding joy these days?

Tico: I think we’re living the joy now. Jon’s been through a lot, and of course everybody goes through that pain with him. The joy is the revival. Doing a record together is cleansing. Jon’s lyrics — and I’m not a lyricist; I don’t listen to lyrics — but this is one of the few records where I listen to every one of them, because they just grabbed me. There was a lot of joy in making this record. I think we’re enjoying it. Jon, what do you think?

Jon: Well, we are. I’ll give you a great example: when we’re at these rehearsals and we’re just marking the progress that I’m making on a monthly basis. There’s no miracles, but when I look around the room and not once does the band sit there and go, “I don’t want to be here.” Or “I don’t want to play that song again.” That to me is love on a whole other level.

We know we’re not going out on the road tomorrow. We know we’re not being paid to sit in this rehearsal space. But the guys are like, “Of course I’ll be there. Let’s go. Let’s do it again.” Or if I crash and burn, they go, “Okay, I traveled all this way and we played an hour before I’ve gotta cool it.” Nobody has cursed me for it. They’re like, “We’re with you.” That’s the love of family and band and brotherhood that no presents, no cars, no art, no silly kids’ stuff could ever, ever replace.

Source: https://www.billboard.com/music/musi...source=twitter